Alright, let's work through 8120 times 2217 step by step
8120 × 2217 = 2217 × (8120)
+ 2217 × 0 what gives us 0
+ 2217 × 20 producing 44340
+ 2217 × 100 that equals 221700
+ 2217 × 8000 that equals 17736000

= 18002040
