Alright, let's work through 5900 times 2191 step by step
5900 × 2191 = 2191 × (5900)
+ 2191 × 0 what gives us 0
+ 2191 × 00 producing 0
+ 2191 × 900 that is equal 1971900
+ 2191 × 5000 what gives us 10955000

= 12926900
