Personally i think there is nothing more rewarding than a pot full of flytraps,especially if it is just one plant that has multiplied. But if you happen to perfer having lots of smaller less crowded plants than the easy option is to just seaperate this. I have not done this myself so i can't say what effect it has on the plant. Although if they are still very small, then you should let them grow to a decent size before seaperating them if thats what you want to do-i've had some little babys growing out of mine for 6 months now and they still are tiny!
