batch of parts, originally planned to produce 500 per day, can be completed in 30 days, but actually 3,600 were produced in 6 days. According to this calculation, how many days can this batch of parts actually be produced?
一批零件，原计划每天生产500个，30天可以完成，实际6天就生产了3600个，照这样计算，这批零件实际几天就可以生产完？
<gadget id="calculator">500 * 30</gadget>
<output>15_000</output>

<gadget id="calculator">3_600 / 6</gadget>
<output>600</output>

<gadget id="calculator">15_000 / 600</gadget>
<output>25</output>

<result>25</result>