It's actually quite easy once you figure out the sequence. I did it just a few weeks ago myself. You'll need to start at the left and work your way toward the 1/10ths. Hold the left most metal ring and spin the number immediately to the right until the number to the left is where you want it. Continue through the rest of the digits the same way. You'll likely screw up a few times and end up with your 0 turning back into a 1, requiring you start from scratch, but you'll figure it out none the less.
Much easier to experiment with some trial and error than it is to explain.
