No problem, we've got 6924 and 2857 to multiply
6924 × 2857 = 2857 × (6924)
+ 2857 × 4 what gives us 11428
+ 2857 × 20 yielding 57140
+ 2857 × 900 yielding 2571300
+ 2857 × 6000 giving us 17142000

= 19781868
