Easy peasy put it up on the stand and loosen the nut and bolt either side of the wheel this is the spindle, don't remove it completely just yet. Next you need to slacken the chain which you should be able to do by pushing the rear wheel towards the bike however if that doesn't work loosen the chain tensioners either end of the swingarm, they look like a piece of threaded rod with two nuts on each one. Next you'll need to split the chain, this could either be held with a split link or riveted together. I've only ever done a split link so let's assume that's what you have. Whilst looking at the chain spin the wheel slowly until you find some thing like this in the video here ">
(someone embed it pretty please? ) and do what they do to split the chain. Once the chain is out the way hold the wheel with one hand and remove the spindle, the wheel should come free fairly easily if it doesn't give it a gentle wiggle to free it from the brake caliper and you're done Follow those steps backwards to put it back on and tension your chain before doing the spindle up tightly. Good luck!