Whenever you want to learn a new braid, the basics are a must. Knowing how to French braid is something that can help you learn any braid possible.
Take a piece of hair from the front, or sides.
Split into 3 sections.
Take an outside section and add it into the left most section. Cross the section over the middle. Do that for each of the sides.
And after you get to the bottem, braid regularly. ☺