Alright, let's work through 5842 times 2687 step by step
5842 × 2687 = 2687 × (5842)
+ 2687 × 2 that is equal 5374
+ 2687 × 40 giving us 107480
+ 2687 × 800 producing 2149600
+ 2687 × 5000 what gives us 13435000

= 15697454
