No problem, we've got 3353 and 6303 to multiply
3353 × 6303 = 6303 × (3353)
+ 6303 × 3 giving us 18909
+ 6303 × 50 resulting in 315150
+ 6303 × 300 what gives us 1890900
+ 6303 × 3000 that is equal 18909000

= 21133959
