Alright, let's work through 5838 times 2136 step by step
5838 × 2136 = 2136 × (5838)
+ 2136 × 8 that is equal 17088
+ 2136 × 30 that is equal 64080
+ 2136 × 800 that equals 1708800
+ 2136 × 5000 yielding 10680000

= 12469968
