Alright, let's work through 5840 times 2680 step by step
5840 × 2680 = 2680 × (5840)
+ 2680 × 0 that equals 0
+ 2680 × 40 which equals 107200
+ 2680 × 800 what gives us 2144000
+ 2680 × 5000 yielding 13400000

= 15651200
