Alright, let's work through 5543 times 4535 step by step
5543 × 4535 = 4535 × (5543)
+ 4535 × 3 yielding 13605
+ 4535 × 40 that results in 181400
+ 4535 × 500 that is equal 2267500
+ 4535 × 5000 that equals 22675000

= 25137505
