Alright, let's work through 5986 times 2391 step by step
5986 × 2391 = 2391 × (5986)
+ 2391 × 6 what gives us 14346
+ 2391 × 80 producing 191280
+ 2391 × 900 producing 2151900
+ 2391 × 5000 giving us 11955000

= 14312526
