Alright, let's work through 4287 times 6259 step by step
4287 × 6259 = 6259 × (4287)
+ 6259 × 7 that results in 43813
+ 6259 × 80 producing 500720
+ 6259 × 200 giving us 1251800
+ 6259 × 4000 giving us 25036000

= 26832333
