how to divide in c# code example

Example: divide 3 numbers c#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Demo {
   class MyApplication {
      static void Main(string[] args) {
         int num;
         num = 15;

         Console.WriteLine("Number: "+num);

         // checking if the number is divisible by 3 and 5
         if (num % 3 == 0 && num % 5 == 0) {
            Console.WriteLine("Divisible by 3 and 5");
         } else {
            Console.WriteLine("Not divisible by 3 and 5");
         }
         Console.ReadLine();
      }
   }
}