Push all branches to remote

git push REMOTE '*:*'
git push REMOTE --all

Split a commit

https://git-scm.com/book/en/v2/Git-Tools-Rewriting-History#Splitting-a-Commit

1. git rebase -i
2. add edit next to line you want to split
3. save and close file
4. add files and commit like normal
5. when you are done git rebase --continue