Alright, let's work through 7515 times 7543 step by step
7515 × 7543 = 7543 × (7515)
+ 7543 × 5 producing 37715
+ 7543 × 10 that equals 75430
+ 7543 × 500 that equals 3771500
+ 7543 × 7000 what gives us 52801000

= 56685645
