Alright, let's work through 3711 times 5838 step by step
3711 × 5838 = 5838 × (3711)
+ 5838 × 1 that is equal 5838
+ 5838 × 10 that is equal 58380
+ 5838 × 700 that equals 4086600
+ 5838 × 3000 resulting in 17514000

= 21664818
