quo

/*
 *  call-seq:
 *     big.quo(numeric) -> float
 *  
 *  Returns the floating point result of dividing <i>big</i> by
 *  <i>numeric</i>.
 *     
 *     -1234567890987654321.quo(13731)      #=> -89910996357705.5
 *     -1234567890987654321.quo(13731.24)   #=> -89909424858035.7
 *     
 */

static VALUE
rb_big_quo(x, y)
    VALUE x, y;
{
    double dx = rb_big2dbl(x);
    double dy;

    switch (TYPE(y)) {
      case T_FIXNUM:
        dy = (double)FIX2LONG(y);
        break;

      case T_BIGNUM:
        dy = rb_big2dbl(y);
        break;

      case T_FLOAT:
        dy = RFLOAT(y)->value;
        break;

      default:
        return rb_num_coerce_bin(x, y);
    }
    return rb_float_new(dx / dy);
}