"Teaching Double Division can help in teaching long division by reinforcing the principles of division and giving students success with a less frustrating alternative.
Double Division does not depend on memorizing the multiplication facts or estimating how many times one number goes into another. It may take 50% longer, but it is far less frustrating and probably easier to understand than Long Division.
Step 1 - Double, double, double.
Step 2 - Subtract off multiples.
Step 3 - Add up your answer."