Alright, let's work through 8647 times 1380 step by step
8647 × 1380 = 1380 × (8647)
+ 1380 × 7 resulting in 9660
+ 1380 × 40 that is equal 55200
+ 1380 × 600 producing 828000
+ 1380 × 8000 what gives us 11040000

= 11932860
