Alright, let's work through 5791 times 3440 step by step
5791 × 3440 = 3440 × (5791)
+ 3440 × 1 that is equal 3440
+ 3440 × 90 producing 309600
+ 3440 × 700 resulting in 2408000
+ 3440 × 5000 that is equal 17200000

= 19921040
