C :: Program To Convert A Number Into A More Readable Format

I wanted to write a program to convert a number into a more readable format. It's like, if the input enters the number as 2361263 the output should be like 2,361,263. I went about this problem like extraction the number first and then if the count was equal to multiple of three i'd print ',' instead of the number.

But initially when i wrote the code for extracting a single digit from the number

Code:

#include<stdio.h>
void main() {
unsigned long long num=pow(2,50);
int count=0;
while(num!=0) {
int last_digit;

[Code]....

I know that I'd lose the number when i finish printing it, but still I only end up printing the entire number in reverse order.

As in if the input is 1234 the output is 4,321 which is not what i want.

One way of overcoming this problem is to store the values in an array and then reading then back from the end. But i wanted to know if there is a better solution than this? To extract the digits from the number in the same order as it is in the number