Very simple to do, unlike some of the other challenges, this one works for any kind of drift. Drift, E-Drift, Awesome Drift, Great Drift, etc. If you are a natural drifter, than this one will probably come to you very quickly over the course of a race or two. If, like me, you suck at drifting and often pass on the more strenuous (to me) drift challenges, then just find a piece of open space, get your car to speed and make sharp turns to initiate. It is probably quicker to use your emergency brakes to initiate 10 E-Drifts, but it is still easy with any of the other drifts too. Just remember, get going fast in a straight line, and then swerve.
Two places that work unusually well for this are the airport drag strip, or if you find there are two many vehicles there for you, just head north into the wilds of the outback and off road entirely.