No problem, we've got 1900 and 3321 to multiply
1900 × 3321 = 3321 × (1900)
+ 3321 × 0 producing 0
+ 3321 × 00 giving us 0
+ 3321 × 900 what gives us 2988900
+ 3321 × 1000 producing 3321000

= 6309900
