Alright, let's work through 4353 times 4215 step by step
4353 × 4215 = 4215 × (4353)
+ 4215 × 3 producing 12645
+ 4215 × 50 producing 210750
+ 4215 × 300 resulting in 1264500
+ 4215 × 4000 that results in 16860000

= 18347895
