No problem, we've got 4003 and 4315 to multiply
4003 × 4315 = 4315 × (4003)
+ 4315 × 3 yielding 12945
+ 4315 × 00 that is equal 0
+ 4315 × 000 that is equal 0
+ 4315 × 4000 what gives us 17260000

= 17272945
