C :

#include<stdio.h>
int main()
{
	int a,b,s,count,i,j,k;
	scanf("%d%d",&a,&b);
		printf("%d\n%d\n",a,b);
		count=0;s=1;i=1;j=0;
		while(b>0)
		{
			s=b%10;
			if(s==0)
			{
				k=a;
				while(k>0)
				{
					printf("0");
					k=k/10;
				}
				printf("\n");
				b=b/10;i=i*10;j++;
			}
			else
			{
				printf("%d\n",s*a);
			    count+=s*a*i;
			    b=b/10;i=i*10;
			    j++;
			}
		}
		if(j!=1)
		    printf("%d\n",count);
		printf("\n");
	return 0;
}

C++ :

#include<stdio.h>
int main()
{
	int a,b,s,k,res;
	int len = 0; 
	scanf("%d%d",&a,&b);
	char buf[10];
	k = a;
	while(k>0)
		len++,k/=10;
	sprintf(buf,"%%0%dd\n",len);
	k = b;
	printf("%d\n%d\n",a,b);
	while(k>0)
	{
		s=k%10;
		printf(buf,s*a);
		k/=10;
	}
	if(b>=10)
		printf("%d\n",a*b);
	
	//printf("%d",5);
	return 0;
}

Pascal :

var a,b,g,s:longint;
begin
    readln(a,b);
    writeln(a);
    writeln(b);
    if b<10 then writeln(a*b)
    else
    begin
        g:=b mod 10;
        s:=b div 10;
        if g<>0 then
        begin
          writeln(a*g);
          writeln(a*s);
        end
        else
        begin
          writeln('00');
          writeln(a*s);
        end;
        writeln(a*b);
   end;
end.

Java :

import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner sc=new Scanner(System.in);
		int a=sc.nextInt(),b=sc.nextInt();
		int temp1,temp2;
		if((a+"").length()==2&&(b+"").length()==2){
			System.out.println(a);
			System.out.println(b);
			temp1=Integer.parseInt((b+"").substring(1, 2))*a;
			temp2=Integer.parseInt((b+"").substring(0, 1))*a;
			if(temp1==0){
				System.out.println("00");
			}else{
				System.out.println(temp1);
			}
			System.out.println(temp2);
			System.out.println(temp1+temp2*10);
		}else if((a+"").length()==1&&(b+"").length()==2){
			System.out.println(a);
			System.out.println(b);
			temp1=Integer.parseInt((b+"").substring(1, 2))*a;
			temp2=Integer.parseInt((b+"").substring(0, 1))*a;
			if(temp1==0){
				System.out.println("00");
			}else{
				System.out.println(temp1);
			}
			System.out.println(temp2);
			System.out.println(temp1+temp2*10);
		}else{
			System.out.println(a);
			System.out.println(b);
			System.out.println(a*b);
		}
	}
}

C# :

using System;

namespace _200811乘法运算
{
    class Class1
    {
        static void Main()
        {
            string[] s = Console.ReadLine().Split(' ');
            int a, b, c, d;
            a = int.Parse(s[0]);
            b = int.Parse(s[1]);
            Console.WriteLine(a);
            Console.WriteLine(b);

            if (b < 10)
                Console.WriteLine(a * b);
            else
            {
                c = b % 10; d = b / 10;
                if (c != 0) Console.WriteLine(c * a);
                else Console.WriteLine("0{0}", c * a);
                Console.WriteLine(d * a);
                Console.WriteLine(a * b);
            }
            Console.ReadLine();
        }
    }
}