In the metric system, you give a name to the following multiples: 10, 100, 1000, 0.1, 0.01, 0.001, and then you skip three places. So, you have

And thus 0.000001 of something is a micro-something (i.e. one millionth of a certain unit)
Pythagoras was the Greek Scholar that caused Mathematics
To convert 7,614 mm to dm , you would move the decimal point 2 places to the left.