Alright, let's work through 3830 times 1043 step by step
3830 × 1043 = 1043 × (3830)
+ 1043 × 0 that results in 0
+ 1043 × 30 what gives us 31290
+ 1043 × 800 that is equal 834400
+ 1043 × 3000 producing 3129000

= 3994690
