Alright, let's work through 1089 times 3653 step by step
1089 × 3653 = 3653 × (1089)
+ 3653 × 9 which equals 32877
+ 3653 × 80 producing 292240
+ 3653 × 000 that results in 0
+ 3653 × 1000 which equals 3653000

= 3978117
