It's easy to get this just by playing if you enjoy any of the five types, but Expert may prove difficult for some so I offer a solution that is 100% guaranteed. Start Free Cell on each of the difficulties. Keep restarting until you get a game number that is between 0 and 1,000,000.
Now, go to
https://freecellgamesolutions.com/1m/ and enter that number.
Check that it's the right puzzle and use any of the three types of the solution to solve the puzzle. Repeat for all 4 difficulties.