Alright, let's work through 5415 times 9543 step by step
5415 × 9543 = 9543 × (5415)
+ 9543 × 5 that is equal 47715
+ 9543 × 10 what gives us 95430
+ 9543 × 400 yielding 3817200
+ 9543 × 5000 yielding 47715000

= 51675345
