Alright, let's work through 8685 times 9000 step by step
8685 × 9000 = 9000 × (8685)
+ 9000 × 5 producing 45000
+ 9000 × 80 producing 720000
+ 9000 × 600 what gives us 5400000
+ 9000 × 8000 that is equal 72000000

= 78165000
