No problem, we've got 6623 and 300 to multiply
6623 × 300 = 300 × (6623)
+ 300 × 3 that results in 900
+ 300 × 20 resulting in 6000
+ 300 × 600 what gives us 180000
+ 300 × 6000 resulting in 1800000

= 1986900
