Alright, let's work through 8628 times 6460 step by step
8628 × 6460 = 6460 × (8628)
+ 6460 × 8 that equals 51680
+ 6460 × 20 which equals 129200
+ 6460 × 600 resulting in 3876000
+ 6460 × 8000 giving us 51680000

= 55736880
