... PHP 4 >= 4.0.4) gmp_div_qr -- Divide numbers and get quotient and remainder . array gmp_div_qr ( resource n, resource d [, int round]) . The function divides n by d and returns array, with the first element being [n/d] (the integer result of the division) and the second being (n - [n/d] * d) (the remainder of the division). ... php $a = gmp_init ("0x41682179fbf5"); $res = gmp_div_qr ($a, "0xDEFE75"); printf("Result is: q - %s, r - %s", gmp_strval ($res[0]), gmp_strval ($res[1])); ?> ...