No problem, we've got 1944 and 6870 to multiply
1944 × 6870 = 6870 × (1944)
+ 6870 × 4 yielding 27480
+ 6870 × 40 producing 274800
+ 6870 × 900 giving us 6183000
+ 6870 × 1000 which equals 6870000

= 13355280
