C/stdlib.h/div

    
//Declaration: div_t div(int numerator, int denominator); 

  #include <stdlib.h>
  #include <stdio.h>
  int main(void)
  {
    div_t n;
    n = div(10, 3);
    printf("Quotient and remainder: %d %d.\n", n.quot, n.rem);
    return 0;
  }
         
/*
Quotient and remainder: 3 1.
*/