Alright, let's work through 6824 times 7840 step by step
6824 × 7840 = 7840 × (6824)
+ 7840 × 4 what gives us 31360
+ 7840 × 20 producing 156800
+ 7840 × 800 what gives us 6272000
+ 7840 × 6000 resulting in 47040000

= 53500160
