Alright, let's work through 8710 times 7770 step by step
8710 × 7770 = 7770 × (8710)
+ 7770 × 0 resulting in 0
+ 7770 × 10 producing 77700
+ 7770 × 700 resulting in 5439000
+ 7770 × 8000 yielding 62160000

= 67676700
