Alright, let's work through 3870 times 1093 step by step
3870 × 1093 = 1093 × (3870)
+ 1093 × 0 yielding 0
+ 1093 × 70 that results in 76510
+ 1093 × 800 that is equal 874400
+ 1093 × 3000 resulting in 3279000

= 4229910
