I use a walking foot to attach binding to the front of the quilt using 1/4 in seam. Dont cut off your backing or batting yet, do that after you sew it on. Iron your binding seam flat on front. Now fold it over to back of quilt.
I dont pin since I discovered Fons and Porters glue stick. It works very well to hold the binding down and hasnt gumed up my machine.
If you prefer use pins or clips or even steam a seam to hold binding in place. Be sure and cover the stitch line with the binding.
Then on the front of quilt stitch in the ditch to finish binding. I like to use a stitch in the ditch foot but a walking foot works ok.
Do you know how to do the corners? If not it is too hard to explain without pictures. You can find instructions on line, try QuiltersTV, they have lots of videos.