Alright, let's work through 7784 times 6864 step by step
7784 × 6864 = 6864 × (7784)
+ 6864 × 4 what gives us 27456
+ 6864 × 80 producing 549120
+ 6864 × 700 which equals 4804800
+ 6864 × 7000 resulting in 48048000

= 53429376
