In England and Wales:
You've agreed everything informally.
Solicitor will write up a financial consent order.- the legal agreement including your agreements plus clauses, laws etc) a d81 (overview high level of yours/his/splits), and form A (application to court).
You will both then legal advice. I.e. a sol to talk you through the consent order na explain what it means so a court /judge knows it's informed agreement.
Applications to court can take 12w and a judge will then seal it. (Approve it).
If not approved they'll ask you to visit just and just confirm. You maybe both have to write letters saying your happy with it, and no corrosion has happened and you've both had legal advice (no additional children have been born in the relationship).
Once you get the sealed order you action it
Usually pension sharing order is after 28 days. But court will confirm the dates have to be done by, i.e. cash transferred, pensions transferred, house sold, house transferred, equity buyouts etc, bank accounts closed etc.
This process can be about £1500 how you split cost is dependent on what you agree!
There's a seperate cost for divorce part.
As you both have goverment pensions youigjt want to consider a pension actualarual report as they aren't standard this can cost 2k-6k but there is also a free Pension Advisory Service you might want to speak to.
Think that's all x