Alright, let's work through 5756 times 7500 step by step
5756 × 7500 = 7500 × (5756)
+ 7500 × 6 what gives us 45000
+ 7500 × 50 yielding 375000
+ 7500 × 700 giving us 5250000
+ 7500 × 5000 giving us 37500000

= 43170000
