Do you multiply scientific notation the same as dividing it?
I'll just do 2 examples.
$$(5.2*10^6)*(2.6*10^8)=5.2*2.6*10^{14}=13.52*10^{14}=1.352*10^{15}\\\\(5.2*10^6)\div (2.6*10^8)= [5.2/2.6] * [10^6/10^8]=2*10^{-2}\\\\$$