Alright, let's work through 4104 times 7900 step by step
4104 × 7900 = 7900 × (4104)
+ 7900 × 4 giving us 31600
+ 7900 × 00 yielding 0
+ 7900 × 100 resulting in 790000
+ 7900 × 4000 producing 31600000

= 32421600
