Alright, let's work through 3686 times 3756 step by step
3686 × 3756 = 3756 × (3686)
+ 3756 × 6 producing 22536
+ 3756 × 80 yielding 300480
+ 3756 × 600 resulting in 2253600
+ 3756 × 3000 resulting in 11268000

= 13844616
