Alright, let's work through 5401 times 3649 step by step
5401 × 3649 = 3649 × (5401)
+ 3649 × 1 yielding 3649
+ 3649 × 00 resulting in 0
+ 3649 × 400 that results in 1459600
+ 3649 × 5000 yielding 18245000

= 19708249
