No problem, we've got 6657 and 3153 to multiply
6657 × 3153 = 3153 × (6657)
+ 3153 × 7 that equals 22071
+ 3153 × 50 resulting in 157650
+ 3153 × 600 resulting in 1891800
+ 3153 × 6000 that results in 18918000

= 20989521
