You need to take care of and agree upon details such as time and money, to stay away from the blame game and follow through with what you have agreed upon. Your kids need both of you and always will. They need to know that you love them and that the break up is not their fault. Tell them you love them often. Unless your child is a teenager, hugs are never too much.
Teenagers tend to be touchy about being touched so handle a teenager with extra patience and care.
After a divorce, children tend to be confused, angry, sad or sullen. Or, they may act unnaturally happy and smiley as if by ignoring the whole event they can just make it go away. Give your children time, listen to them carefully, answer their questions bit by bit without flooding them with too much information at once. Kids have a way of knowing how much information they can handle at any given time. Remember each child is unique and no two children will react to a divorce the same way.