Alright, let's work through 6380 times 8900 step by step
6380 × 8900 = 8900 × (6380)
+ 8900 × 0 resulting in 0
+ 8900 × 80 yielding 712000
+ 8900 × 300 that is equal 2670000
+ 8900 × 6000 giving us 53400000

= 56782000
