Alright, let's work through 3863 times 2861 step by step
3863 × 2861 = 2861 × (3863)
+ 2861 × 3 producing 8583
+ 2861 × 60 giving us 171660
+ 2861 × 800 which equals 2288800
+ 2861 × 3000 that equals 8583000

= 11052043
