Alright, let's work through 5912 times 489 step by step
5912 × 489 = 489 × (5912)
+ 489 × 2 resulting in 978
+ 489 × 10 what gives us 4890
+ 489 × 900 producing 440100
+ 489 × 5000 yielding 2445000

= 2890968
