Alright, let's work through 4123 times 8399 step by step
4123 × 8399 = 8399 × (4123)
+ 8399 × 3 that results in 25197
+ 8399 × 20 yielding 167980
+ 8399 × 100 that results in 839900
+ 8399 × 4000 resulting in 33596000

= 34629077
