No problem, we've got 4170 and 3005 to multiply
4170 × 3005 = 3005 × (4170)
+ 3005 × 0 which equals 0
+ 3005 × 70 yielding 210350
+ 3005 × 100 what gives us 300500
+ 3005 × 4000 producing 12020000

= 12530850
