How to multiply natural numbers using pencil and paper

Multiply it n-fold!

Now this is the time to multiply the multitude of numbers having about as much fun as you would have you done it in the prehistoric time, but saving on paper and pencil which you do not have around, anyway.

Here is your imaginary piece of magical paper to scribble numbers on, which will multiply them for you and remind you of the old times.

Just enter two natural numbers and click the '=' button

 Step by step operations.
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