Alright, let's work through 8684 times 5187 step by step
8684 × 5187 = 5187 × (8684)
+ 5187 × 4 what gives us 20748
+ 5187 × 80 yielding 414960
+ 5187 × 600 which equals 3112200
+ 5187 × 8000 that is equal 41496000

= 45043908
