Alright, let's work through 1643 times 3370 step by step
1643 × 3370 = 3370 × (1643)
+ 3370 × 3 yielding 10110
+ 3370 × 40 resulting in 134800
+ 3370 × 600 that equals 2022000
+ 3370 × 1000 resulting in 3370000

= 5536910
