Most bar tape has a piece of tape specifically to cover the brake band at the back of the lever housing.
If you wind tape clockwise on the right side of the bar and anti clockwise on the left, starting from the bar end, you eventually will tape around the tight curve of the bar beneath the lever band, which you should have already covered with the small piece of tape provided.
Wind the tape in at a steep angle under the lever housing and over the top onto the upper part of the bar. It's not easy to acheive this, but several attempts should be made to get it correctly positioned, so that no part of the band, lever housing or bar show when you turn back the lever hoods.
Going the figure of eight route covers it OK, but can cause a bulky area on a smooth curve.
Best of luck! If at first you don't succeed.