Alright, let's work through 3385 times 5645 step by step
3385 × 5645 = 5645 × (3385)
+ 5645 × 5 that results in 28225
+ 5645 × 80 producing 451600
+ 5645 × 300 yielding 1693500
+ 5645 × 3000 giving us 16935000

= 19108325
