Alright, let's work through 6840 times 6483 step by step
6840 × 6483 = 6483 × (6840)
+ 6483 × 0 what gives us 0
+ 6483 × 40 giving us 259320
+ 6483 × 800 what gives us 5186400
+ 6483 × 6000 resulting in 38898000

= 44343720
