Alright, let's work through 6840 times 7524 step by step
6840 × 7524 = 7524 × (6840)
+ 7524 × 0 what gives us 0
+ 7524 × 40 producing 300960
+ 7524 × 800 that is equal 6019200
+ 7524 × 6000 giving us 45144000

= 51464160
