Alright, let's work through 5840 times 2182 step by step
5840 × 2182 = 2182 × (5840)
+ 2182 × 0 which equals 0
+ 2182 × 40 giving us 87280
+ 2182 × 800 which equals 1745600
+ 2182 × 5000 which equals 10910000

= 12742880
