First had to clean inside the empty freezer, that was the hard part. removed old gasket and cleaned inside the track in the door. had the new gasket well warmed and in the right shape.
put new gasket in track. seating it firmly. It was very easy. I did watch a couple of online videos to get the general idea of what it detailed. While I was at it I cleaned the coils with the brush I also bought with the gasket, worked great. all in all if you get organized before hand and take your time, in my case it really was easy. I did it with the door on.