using System;
public class CSharpApplication
{
private static int recursive_divide(int a, int b) {
if (a < b) {
return 0;
}
return recursive_divide(a - b, b) + 1;
}
public static void Main(string[] args)
{
int a = 28;
int b = 4;
Console.Write(recursive_divide(a, b));
}
}
/*
run:
7
*/