No problem, we've got 6489 and 6681 to multiply
6489 × 6681 = 6681 × (6489)
+ 6681 × 9 that is equal 60129
+ 6681 × 80 yielding 534480
+ 6681 × 400 resulting in 2672400
+ 6681 × 6000 that equals 40086000

= 43353009
