No problem, we've got 6638 and 3218 to multiply
6638 × 3218 = 3218 × (6638)
+ 3218 × 8 which equals 25744
+ 3218 × 30 yielding 96540
+ 3218 × 600 that is equal 1930800
+ 3218 × 6000 giving us 19308000

= 21361084
