Alright, let's work through 8688 times 1340 step by step
8688 × 1340 = 1340 × (8688)
+ 1340 × 8 that results in 10720
+ 1340 × 80 what gives us 107200
+ 1340 × 600 that results in 804000
+ 1340 × 8000 resulting in 10720000

= 11641920
