Alright, let's work through 2664 times 2081 step by step
2664 × 2081 = 2081 × (2664)
+ 2081 × 4 yielding 8324
+ 2081 × 60 yielding 124860
+ 2081 × 600 that is equal 1248600
+ 2081 × 2000 which equals 4162000

= 5543784
