No problem, we've got 2814 and 7120 to multiply
2814 × 7120 = 7120 × (2814)
+ 7120 × 4 that is equal 28480
+ 7120 × 10 resulting in 71200
+ 7120 × 800 producing 5696000
+ 7120 × 2000 which equals 14240000

= 20035680
