What happens next?

How to divide cremated remains
Respect the wishes of the deceased.
Consider their religion and its tenets regarding common cremation or burial procedures. For example, division is not recommended by the catholic church, as they treat remains as a single body.
And islam is against the scattering of ashes, while hinduism is not. If you're unsure of the deceased's wishes, talk amongst family and loved ones to try and get a better idea.