No problem, we've got 2856 and 5478 to multiply
2856 × 5478 = 5478 × (2856)
+ 5478 × 6 that equals 32868
+ 5478 × 50 that equals 273900
+ 5478 × 800 giving us 4382400
+ 5478 × 2000 yielding 10956000

= 15645168
