Use shovels, wet/ dry vac, brooms, mops, whatever you have to clean the floors as best you can. Clean and treat remaining surfaces like wood studs, flooring etc with a bleach solution that is 1 part bleach to 10 parts water.

Leave all bedroom and closet doors and cabinets open. If it is safe and the power can be turned back on, point fans into damp areas. If the AC is operational, turn it on and set the thermostat as low as possible, the AC will pull moisture out of the air and dump it outside, speeding up the drying process.