No problem, we've got 3321 and 6373 to multiply
3321 × 6373 = 6373 × (3321)
+ 6373 × 1 that is equal 6373
+ 6373 × 20 that results in 127460
+ 6373 × 300 that is equal 1911900
+ 6373 × 3000 which equals 19119000

= 21164733
