in scientific notation, we simply leave an number to the left of the decimal dot, so in 0.00000825, we need to move over the dot to 0000008.25 , and for that, we have to move it 6 slots to the right, meaning an exponent of -6, namely 10⁻⁶.
[tex]\bf 0\underline{.000008}25\implies 0000008.25\times 10^{-6}\implies 8.25\times 10^{-6}[/tex]