the drum comes off with the hub/bearing as one unit. in the centre of the drum, you will see a metal cap, lever this off with a screwdriver. you will then find a large nut. if you remove the nut,(it may be fairly tight) the drum/hub should then pull straight off. sometimes it can be difficult to pull it off, this can be because of a wear ridge around the edge of the drum & you may need to wrestle with it. on re-assembly, it's best to use a new hub nut & torque it correctly & lock it in place. (and yes there are shoes inside it, & it would be a good idea to get everything that you need first!)
jim
April 2010