Solution - Simplification or other simple results

Step  1  :

 1.1     10 = 2•5

(10)¹⁶ = (2•5)¹⁶ = 2¹⁶ • 5¹⁶

Equation at the end of step  1  :

  4 • (216•516)

Step  2  :

Multiplying exponents :

 2.1    2²  multiplied by  2¹⁶   = 2^{(2 + 16)} = 2¹⁸

Final result :

  (218•516)