Hey, welcome!
I know your question isn't a complex one but I would say it depends on what is available to you.
I would start by using a shop vac to get the big stuff and then a generic spray cleaner or even just water and towel to wipe them down until clean. But if you do so, be sure to have grease on hand to replace the grease you just wiped off. Lubrication is important here.
-Connor