Alright, let's work through 3649 times 1805 step by step
3649 × 1805 = 1805 × (3649)
+ 1805 × 9 yielding 16245
+ 1805 × 40 resulting in 72200
+ 1805 × 600 yielding 1083000
+ 1805 × 3000 that results in 5415000

= 6586445
