I machine sew my binding to the front and then fold over and hand sew to the back. When machine sewing on binding, I stop 1/4" from the edge; fold to get the 45 degree then start machine sewing 1/4" from that edge as well. Follow that same process for all 4 corners. Depending on the day and/or the quilt while hand sewing to the back, I might take a stitch or two in the 45 degree fold to hold things together better but usually not necessary.