Alright, let's work through 1115 times 8180 step by step
1115 × 8180 = 8180 × (1115)
+ 8180 × 5 what gives us 40900
+ 8180 × 10 yielding 81800
+ 8180 × 100 giving us 818000
+ 8180 × 1000 what gives us 8180000

= 9120700
