I'd be careful about dividing individual pips. They grow through underground runners, and the more damage you do to the system the less likely they'll be to survive. I've had luck transplanting LOTV in rather large clumps (10+ pips per clump) and watering, watering, watering for a few days. Next year when they come up again, you can thin them. For now, I'd just worry about getting them to survive the transplant. They can be finicky.