Alright, let's work through 5423 times 4540 step by step
5423 × 4540 = 4540 × (5423)
+ 4540 × 3 that is equal 13620
+ 4540 × 20 producing 90800
+ 4540 × 400 which equals 1816000
+ 4540 × 5000 that equals 22700000

= 24620420
