Alright, let's work through 4099 times 8678 step by step
4099 × 8678 = 8678 × (4099)
+ 8678 × 9 resulting in 78102
+ 8678 × 90 resulting in 781020
+ 8678 × 000 which equals 0
+ 8678 × 4000 that equals 34712000

= 35571122
