Alright, let's work through 6489 times 1288 step by step
6489 × 1288 = 1288 × (6489)
+ 1288 × 9 which equals 11592
+ 1288 × 80 yielding 103040
+ 1288 × 400 that equals 515200
+ 1288 × 6000 resulting in 7728000

= 8357832
