Alright, let's work through 4287 times 4127 step by step
4287 × 4127 = 4127 × (4287)
+ 4127 × 7 that equals 28889
+ 4127 × 80 resulting in 330160
+ 4127 × 200 producing 825400
+ 4127 × 4000 yielding 16508000

= 17692449
