No problem, we've got 6487 and 3321 to multiply
6487 × 3321 = 3321 × (6487)
+ 3321 × 7 producing 23247
+ 3321 × 80 giving us 265680
+ 3321 × 400 giving us 1328400
+ 3321 × 6000 producing 19926000

= 21543327
