Alright, let's work through 2160 times 4222 step by step
2160 × 4222 = 4222 × (2160)
+ 4222 × 0 which equals 0
+ 4222 × 60 that equals 253320
+ 4222 × 100 what gives us 422200
+ 4222 × 2000 yielding 8444000

= 9119520
