No problem, we've got 3509 and 4125 to multiply
3509 × 4125 = 4125 × (3509)
+ 4125 × 9 which equals 37125
+ 4125 × 00 giving us 0
+ 4125 × 500 what gives us 2062500
+ 4125 × 3000 producing 12375000

= 14474625
