Multiplying and dividing whole numbers by numbers greater than 0 and less than 1 can be broken into a whole number calculation followed by multiplying or dividing by a power of 10, for example 10, 100 ...

When you divide a decimal by 10, 100 or 1,000, the place value of the digits decreases. The number decreases in value by 10, 100 or 1,000 times. The digits move to the right as the number gets smaller ...