No problem, we've got 4215 and 3403 to multiply
4215 × 3403 = 3403 × (4215)
+ 3403 × 5 giving us 17015
+ 3403 × 10 giving us 34030
+ 3403 × 200 that equals 680600
+ 3403 × 4000 that equals 13612000

= 14343645
