remainder

#include <stdio.h>

int main(void)
{
  int a, b, c, d;

  printf("a : ");
  scanf("%d", &a);

  printf("b : ");
  scanf("%d", &b);

  for(c = a, d = 0; c > b; c -= b, d++);

  printf("a %% b = %d\n", c);
  printf("a / b = %d\n", d);

  return 0;
}