Alright, let's work through 2163 times 1320 step by step
2163 × 1320 = 1320 × (2163)
+ 1320 × 3 yielding 3960
+ 1320 × 60 producing 79200
+ 1320 × 100 what gives us 132000
+ 1320 × 2000 that results in 2640000

= 2855160
