Alright, let's work through 80725078 times 38387563 step by step
80725078 × 38387563 = 38387563 × (80725078)
+ 38387563 × 8 that results in 307100504
+ 38387563 × 70 resulting in 2687129410
+ 38387563 × 000 resulting in 0
+ 38387563 × 5000 that is equal 191937815000
+ 38387563 × 20000 producing 767751260000
+ 38387563 × 700000 that is equal 26871294100000
+ 38387563 × 0000000 resulting in 0
+ 38387563 × 80000000 yielding 3071005040000000

= 3098839017404914
