Alright, let's work through 6840 times 4352 step by step
6840 × 4352 = 4352 × (6840)
+ 4352 × 0 yielding 0
+ 4352 × 40 that equals 174080
+ 4352 × 800 resulting in 3481600
+ 4352 × 6000 giving us 26112000

= 29767680
