Alright, let's work through 4640 times 2487 step by step
4640 × 2487 = 2487 × (4640)
+ 2487 × 0 producing 0
+ 2487 × 40 producing 99480
+ 2487 × 600 producing 1492200
+ 2487 × 4000 which equals 9948000

= 11539680
