Alright, let's work through 3999 times 6718 step by step
3999 × 6718 = 6718 × (3999)
+ 6718 × 9 giving us 60462
+ 6718 × 90 resulting in 604620
+ 6718 × 900 resulting in 6046200
+ 6718 × 3000 resulting in 20154000

= 26865282
