Turn off water to the bathroom
Remove the faucet, handles, drain cover, overflow plate, and any attached trim
Cut and remove caulk around the tub edges
Remove any wall material covering the tub flange
Disconnect the drain and overflow plumbing from access below or behind the tub
Protect the floor with drop cloths or plywood
Cut through any screws, nails, or fasteners securing the tub to framing or subfloor
Break the tub into manageable sections if it will not fit through the doorway
Pry the tub loose from the alcove or platform
Lift and remove the tub with assistance
Clear out all remaining debris and fasteners
Inspect the subfloor and framing for damage before installing a new tub