Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

 (1): "d6"   was replaced by   "d^6". 

Step  1  :

Equation at the end of step  1  :

  5d213 • d6

Step  2  :

Multiplying exponential expressions :

 2.1    d²¹³ multiplied by d⁶ = d^{(213 + 6)} = d²¹⁹

Final result :

  5d219