Alright, let's work through 3834 times 2704 step by step
3834 × 2704 = 2704 × (3834)
+ 2704 × 4 that is equal 10816
+ 2704 × 30 what gives us 81120
+ 2704 × 800 that results in 2163200
+ 2704 × 3000 yielding 8112000

= 10367136
