Alright, let's work through 4172 times 4328 step by step
4172 × 4328 = 4328 × (4172)
+ 4328 × 2 giving us 8656
+ 4328 × 70 producing 302960
+ 4328 × 100 producing 432800
+ 4328 × 4000 that is equal 17312000

= 18056416
