Also, note that this number does not have what is typically referred to as "decimals".  We use that term for portions of a number that are less than one.

For example, the number 6 and 5 tenths would be written 6.5

Since 5 tenths = one half, this number would be the same as    6 1/2.

Decimal places stretch out to the right in much the same way as the place value of whole numbers stretches out to the left.

So,

.1     is one tenth

.01   is one hundredth

.001  is one thousandth

.0001 is one ten-thousandth

etc.

Whether you are in the "decimal" places or in the whole numbers, moving a number one place to the left makes it 10 times larger.  Moving a number one place to the right makes it 10 times smaller. So,

moving 1 one place to the left = 10

moving the 1 in 10 one more place to the left = 100

moving the 1 in 10 one place to the right = 1 again

moving that 1 one more place to the right = .1