Solution - Simplification or other simple results

Step  1  :

 1.1     10 = 2•5

(10)¹⁸ = (2•5)¹⁸ = 2¹⁸ • 5¹⁸

Equation at the end of step  1  :

  4 • (218•518)

Step  2  :

Multiplying exponents :

 2.1    2²  multiplied by  2¹⁸   = 2^{(2 + 18)} = 2²⁰

Final result :

  (220•518)