Alright, let's work through 3863 times 2005 step by step
3863 × 2005 = 2005 × (3863)
+ 2005 × 3 that results in 6015
+ 2005 × 60 that equals 120300
+ 2005 × 800 resulting in 1604000
+ 2005 × 3000 resulting in 6015000

= 7745315
