Solution - Simplification or other simple results

Step  1  :

            5
 Simplify   —
            1

Equation at the end of step  1  :

    9   9
  ((— • —) • 5) • 81
    6   6

Step  2  :

            3
 Simplify   —
            2

Equation at the end of step  2  :

    9   3
  ((— • —) • 5) • 81
    6   2

Step  3  :

            3
 Simplify   —
            2

Equation at the end of step  3  :

    3   3
  ((— • —) • 5) • 81
    2   2

Step  4  :

Final result :

  3645             
  ———— = 911.25000 
   4