using System;

using System.Collections.Generic;

using System.Linq;

public class Program

{

    public static void Main()

    {

        var list = new List<string>();

        list.Add("665057 BC LTD / KX WHEELS -- 5380239 -- ");       

        list.Add("ABRAHAM CHEVROLET MIAMI INC -- 6574754 -- ");

        list.Add("AC COLLINS FORD -- 418426 -- ");

        list.Add("ACCESS FORD LTD -- 2322732 -- ");

        list.Add("ACCESSOR-EASE -- 5809346 --");

        var numbers = list.Select(e => e.Split(new [] {" --"}, StringSplitOptions.RemoveEmptyEntries)[1].Trim());

        foreach(var num in numbers)

            Console.WriteLine(num);

    }

}