Alright, let's work through 3929 times 4263 step by step
3929 × 4263 = 4263 × (3929)
+ 4263 × 9 which equals 38367
+ 4263 × 20 producing 85260
+ 4263 × 900 producing 3836700
+ 4263 × 3000 yielding 12789000

= 16749327
