Alright, let's work through 7857 times 3817 step by step
7857 × 3817 = 3817 × (7857)
+ 3817 × 7 that is equal 26719
+ 3817 × 50 producing 190850
+ 3817 × 800 which equals 3053600
+ 3817 × 7000 yielding 26719000

= 29990169
