How do you do a back stitch step by step?

Step 1: Begin the backstitch by poking the needle up through the fabric, and then back down to make a single stitch. Then poke the needle back up through the fabric a space away from the first stitch, as if you were doing the running stitch.

What is the back stitch technique?

A backstitch is one of the strongest hand sewing stitches. The backstitch gets its name because the needle goes into the fabric behind the previous stitch. On the contrary, with a running stitch, the needle simply passes through the fabric an even distance in front of the previous stitch.