How do you determine the number of zeros to annex in the product of 0.002 and 0.003?

0.002 x 0.003 = 0.000006

the zeroes are multiplied by the power of 10 which is 1/10 in particular.
For example.
The product of a whole number and a decimal number less than 1 will be greater than the whole number multiplied into. For this theorem to be proven. Let us state the mathematical expression into numbers such that 
1.  N x 0.1 = N/0.1 < N 
2.  1 x 0.5 = 0.5 
3.  2 x 0.1 = 0.2 
4.  100 x 0.55 = 55  

These three examples and stances then suggest the claim that the product is not equal to the whole number used in the equation.

Hey mate here is the answerthe correct answer is b may it will you