How do i show a second marriage on a family tree?

i have to make a family tree, but i don't know how to show a second marriage.


my grandmother was married to my pop-pop and had 4 kids,


then when he passed she had 4 more kids with my second grandad





how would this be represented on a family tree?How do i show a second marriage on a family tree?
You would make 2 lines coming from your grandmother. One for your first grandfather and the other for your second grandfather. And then stem the children that they each had together off from there.