Alright, let's work through 8178 times 9955 step by step
8178 × 9955 = 9955 × (8178)
+ 9955 × 8 giving us 79640
+ 9955 × 70 yielding 696850
+ 9955 × 100 yielding 995500
+ 9955 × 8000 that equals 79640000

= 81411990
