Well. Ideally the divorce would end with. The Female getting 50% of the wealth she HELPED the man accumulate, and by HELP I mean she was married to him during the time he made it. The Kids would also get shared custody meaning they spend 365/2 with the Dad and 365/2 with the mom. Assuming the women was unable to develop a career, for whatever reason, he would have to pay her alimony for a set period of time.
Remember thats the Idea situation.
Usually its something like. Women gets 50% of total wealth if you didnt have a prenuptual agreement stating otherwise, meaning that if I made 100,000 before i met her, and then made another 100,000 with her (think of it like a savings account), if i didnt make her sign a prenuptual agreement then she would get 50% of 200,000 instead of 50% of 100,000. Then when it comes to children women usually get most of the custody which decreases her taxes. This is important because then the man must pay child support, which means that he must pay an amount that would allow the children to live as though both parents income was coming into the house. Then if she didnt get a career for whatever reason the man would also have to pay alimony.
So all in all
You lose 50% of your accumulated wealth (if you didnt get a prenuptial agreement)
You pay child support, which is dependant on your monthly income and wealth, Kevin hart the comedian pays like 15k a month..
You then pay alimony (if your wife is unable to make income due to helping you make wealth)
The aftermath of that is that you are basically supporting your old family for the next 2 to 3 decades. If it went the ideal way then it wouldnt be toooooo bad, but hey, this is the reason why they say its "its cheaper to keep her."