juneayerza I would try to explain but I think it best if try these.
https://www.youtube.com/watch?v=c85voeoj50Y
https://www.youtube.com/watch?v=VgaXP6kd8bc
I have adapted my own technique as I have become more confident but these are what inspired me to try it. You can use a contrast colour decorative stitch if you want, it catches the binding down and looks good on kiddies quilts. I don't sew over pins because it can wear the feed dogs, so I pin from the top as close as possible in the ditch of the binding seam into the fold of binding at the back. As the needle approaches a pin ( which I place really close behind each other,) I hold the pin head and let it gently come out in front of the needle as the fabric passes under the presser foot. Pinning takes the most time but worth doing well. I hope this helps and that the links work!