Alright, let's work through 3691 times 4047 step by step
3691 × 4047 = 4047 × (3691)
+ 4047 × 1 that is equal 4047
+ 4047 × 90 that results in 364230
+ 4047 × 600 that results in 2428200
+ 4047 × 3000 that results in 12141000

= 14937477
