No problem, we've got 6689 and 4221 to multiply
6689 × 4221 = 4221 × (6689)
+ 4221 × 9 which equals 37989
+ 4221 × 80 yielding 337680
+ 4221 × 600 that equals 2532600
+ 4221 × 6000 producing 25326000

= 28234269
