The shiny small bracket in the top right corner of your 2 first pics- you can ignore that. Your frame already have a welded-in plate to do that job.
So basically you drop a bolt from the top through the hole in the plate that's pretty much centered in your 3rd pic, hold the kickstand so that the threaded hole at the top of the rectangular bit line up with the bolt and screw it in. The ends of the legs of the stand should face towards the rear.