Alright, let's work through 4278 times 1597 step by step
4278 × 1597 = 1597 × (4278)
+ 1597 × 8 yielding 12776
+ 1597 × 70 that equals 111790
+ 1597 × 200 producing 319400
+ 1597 × 4000 that equals 6388000

= 6831966
