No problem, we've got 3900 and 5583 to multiply
3900 × 5583 = 5583 × (3900)
+ 5583 × 0 producing 0
+ 5583 × 00 that equals 0
+ 5583 × 900 that equals 5024700
+ 5583 × 3000 what gives us 16749000

= 21773700
