Alright, let's work through 4278 times 1965 step by step
4278 × 1965 = 1965 × (4278)
+ 1965 × 8 what gives us 15720
+ 1965 × 70 what gives us 137550
+ 1965 × 200 yielding 393000
+ 1965 × 4000 that is equal 7860000

= 8406270
