Alright, let's work through 5243 times 4000 step by step
5243 × 4000 = 4000 × (5243)
+ 4000 × 3 that is equal 12000
+ 4000 × 40 what gives us 160000
+ 4000 × 200 yielding 800000
+ 4000 × 5000 that is equal 20000000

= 20972000
