Alright, let's work through 6543 times 5700 step by step
6543 × 5700 = 5700 × (6543)
+ 5700 × 3 that results in 17100
+ 5700 × 40 giving us 228000
+ 5700 × 500 what gives us 2850000
+ 5700 × 6000 that results in 34200000

= 37295100
