Evaluate the fraction

Question

(6.58 x 10^5) / (6.30 x 10^7)(3.75 x 10^5)

I keep getting 3916.7 but apparently it's incorrect! Please help me understand!

Answer 1

I am getting an answer of 2.7852 x 10^-8 by first multiplying the bottom numbers first and dividing that product by 6.58 x 10^5:

6.58 x 10^5 = 6.58 x 10^5 = 2.7852 x 10^-8

(6.30 x 10^7)(3.75 x 10^5) 2.3625x10^13