Start by parting the hair on the natural side. Then part the hair from the part, down toward the ear. Now, part the hair into squares on each side & add two elastics on each side of the part.
Part the next row of elastics & the exact same way. Make sure you put your elastics right behind the one in front of it. Criss cross only each side of the part (not across the side part. Make sense? Look at the first picture if not).