PA 3 Extracted digits

//Christian Ballard
//COSC 1336 - 001
//January 28, 2015
//This program should take the users input of three digits and display them seperatly
#include<iostream>
using namespace std;

int main()
{

    int number; // Will store the three digit number the user enters.
    int n1, n2, n3; // Will store the extracted digits.
    int number2; // Will store the original user input because the original becomes altered.

    do
    {

        cout << "Please enter a value between 1 and 999. Your may enter '0' to exit." << endl;
        cin >> number;
        number2 = number; // Duplicates the users input.

        if (number == 0) // Checks to see if the user entered a '0'.
        {
            cout << "Thanks for using this program!" << endl;
        }

        else if (number < 0 || number > 999) // Checks to see if the inputed number is in range.
        {
            cout << "That number is invalid please try again." << endl;
        }
        else // If everything above checks out the extraction will proceed.
        {
            //Extraction process
            n1 = number % 10;
            number /= 10;
            n2 = number % 10;
            number /= 10;
            n3 = number % 10;
            number /= 10;


            cout << "The digits in the number " << number2 << " are " << n3 << ", " << n2 << ", and " << n1 << "." << endl;
        }
    } while (number2 != 0); // Checks to see if the program needs to keep running.


    system("pause");
    return 0;
}