Alright, let's work through 5831 times 2180 step by step
5831 × 2180 = 2180 × (5831)
+ 2180 × 1 that is equal 2180
+ 2180 × 30 giving us 65400
+ 2180 × 800 that results in 1744000
+ 2180 × 5000 what gives us 10900000

= 12711580
