Alright, let's work through 5120 times 8689 step by step
5120 × 8689 = 8689 × (5120)
+ 8689 × 0 that is equal 0
+ 8689 × 20 yielding 173780
+ 8689 × 100 that is equal 868900
+ 8689 × 5000 what gives us 43445000

= 44487680
