There are factors of 10 in 10,000. Each time I divide a number by a factor of 10, the result is 10 times than the original number. For example, if I divide 8.2 by 10, the result is 0.82. This means that 0.82 is 10 times than 8.2. So, 8.2 divided by 10,000 is 0.00082