A factory plans to produce a batch of parts in February 2012, and it needs to produce 400 parts per day on average to complete the task. In fact, 3,000 pieces were produced in the first 6 days. According to this calculation, how many days will it take to complete the original planned production task?
某工厂在2012年二月份计划生产一批零件，平均每天要生产400个才能完成任务．实际上前6天就生产了3000个，照这样计算，完成原计划生产任务共需要多少天？
<gadget id="calculator">3_000 / 6</gadget>
<output>500</output>

<gadget id="calculator">29 / 500</gadget>
<output>29/500 = around 0.058</output>

<gadget id="calculator">400 * (29/500)</gadget>
<output>116/5 = around 23.2</output>

<result>116/5 = around 23.2</result>