Alright, let's work through 3644 times 5369 step by step
3644 × 5369 = 5369 × (3644)
+ 5369 × 4 producing 21476
+ 5369 × 40 that is equal 214760
+ 5369 × 600 that equals 3221400
+ 5369 × 3000 giving us 16107000

= 19564636
