Alright, let's work through 4621 times 3531 step by step
4621 × 3531 = 3531 × (4621)
+ 3531 × 1 resulting in 3531
+ 3531 × 20 which equals 70620
+ 3531 × 600 yielding 2118600
+ 3531 × 4000 resulting in 14124000

= 16316751
