Had two friends get divorced in WA. First one went similar to what you say yours did. They sat down and agreed to who got what, and all the values of accounts and possessions, and then filed the necessary paperwork like rational human beings.
Other friend got screwed in the butt six ways from Sunday. She got alimony, child support, the house, a majority portion of his 401k, the better vehicle, plus all of her asshole of an attorney's fees paid. Her attorney kept filing things with the court that forced his attorney to respond, she and her piranha contested EVERTHING! At the end of it he paid enough in attorney fees to fully fund college for at least one of the two kids college, maybe both. Not sure how that all equates to 50/50 because of no fault divorce laws.