Okay, let's imagine that a family is like a big puzzle. There are different pieces that fit together to make the picture complete. Sometimes, for different reasons, the puzzle pieces don't fit well together anymore, and the picture doesn't look nice. When this happens, the adults in the family might decide to live in different houses and become two separate families. This is called a 'divorce'.
Just like when friends might decide they want to be apart because they argue a lot, parents in a marriage might argue a lot and feel happier living separately. When this happens, they might decide to talk to a special person called a 'lawyer' who helps them make a plan for living in separate houses and still being good parents to their kids.
It's important to know that the kids are never the reason for the divorce. It's a decision that the grown-ups make because they want to be happier. After a divorce, the family may look different, but the love for the kids and the wish for them to be happy and healthy remains the same. Both parents usually still want to spend time with their kids and make sure they are taken care of.
So, just like when a toy breaks, it's sad but it's not the end of playing. Families change, but they can still have fun and make happy memories, even if they are in different houses.
I hope this helps you understand, and remember, it's okay to feel sad or confused, and it's important to talk to grown-ups about your feelings. They are there to help you through it.