An electronics factory needs to produce 50,000 mobile phones. An average of 4,000 mobile phones will be produced per day in the first 5 days, and the rest will be completed within 6 days. How many mobile phones should be produced on average per day?
某电子厂要生产5万部手机，前5天平均每天生产4000部，余下的要在6天内完成，平均每天应生产多少部？
<gadget id="calculator">5 * 10_000</gadget>
<output>50_000</output>

<gadget id="calculator">4_000 * 5</gadget>
<output>20_000</output>

<gadget id="calculator">50_000 - 20_000</gadget>
<output>30_000</output>

<gadget id="calculator">30_000 / 6</gadget>
<output>5_000</output>

<result>5_000</result>