Alright, let's work through 2140 times 6481 step by step
2140 × 6481 = 6481 × (2140)
+ 6481 × 0 giving us 0
+ 6481 × 40 that results in 259240
+ 6481 × 100 what gives us 648100
+ 6481 × 2000 that results in 12962000

= 13869340
