Alright, let's work through 3644 times 6493 step by step
3644 × 6493 = 6493 × (3644)
+ 6493 × 4 yielding 25972
+ 6493 × 40 giving us 259720
+ 6493 × 600 that results in 3895800
+ 6493 × 3000 that equals 19479000

= 23660492
