No problem, we've got 2792 and 6720 to multiply
2792 × 6720 = 6720 × (2792)
+ 6720 × 2 that equals 13440
+ 6720 × 90 that is equal 604800
+ 6720 × 700 resulting in 4704000
+ 6720 × 2000 that equals 13440000

= 18762240
