Alright, let's work through 2140 times 6804 step by step
2140 × 6804 = 6804 × (2140)
+ 6804 × 0 what gives us 0
+ 6804 × 40 that equals 272160
+ 6804 × 100 resulting in 680400
+ 6804 × 2000 that equals 13608000

= 14560560
