Search String Palava

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Threading.Tasks;

namespace SearchStringStuff
{
    class Program
    {
        static void Main(string[] args)
        {
           
            Console.WriteLine("Enter the substring OR string you want to search for");
            
            
            string x = Console.ReadLine();
            Console.WriteLine("enter the string or substring to be searched::");
            string SearchedText = Console.ReadLine();
            string[] myarray = new string[100000];
            myarray = x.Split(' ');

            //starts the initialization process 
            int k = 0;
            foreach (string v in myarray)
            {
                k = k + 1;
                if (v == SearchedText)
                {
                    Console.WriteLine("The string found at position:" + i);

                }

            }
            Console.WriteLine("-------------------------------------------");
            Console.ReadLine();
        }
    }
}