Alright, let's work through 3693 times 3407 step by step
3693 × 3407 = 3407 × (3693)
+ 3407 × 3 that equals 10221
+ 3407 × 90 resulting in 306630
+ 3407 × 600 which equals 2044200
+ 3407 × 3000 producing 10221000

= 12582051
