Solution - Simplification or other simple results

Step  1  :

 1.1     10 = 2•5

(10)^-7 = (2•5)^(-7) = (2)^(-7) • (5)^(-7)

Equation at the end of step  1  :

  9 • ((2)(-7)•(5)(-7))

Step  2  :

Final result :

     9                                     
  ——————— = 9.00000 • 10-7 
  (27•57)