Alright, let's work through 8118 times 9931 step by step
8118 × 9931 = 9931 × (8118)
+ 9931 × 8 what gives us 79448
+ 9931 × 10 producing 99310
+ 9931 × 100 yielding 993100
+ 9931 × 8000 giving us 79448000

= 80619858
