toy factory plans to produce 52,000 electric vehicles. It has been producing 3,500 vehicles per day for 8 days, and the remaining requirements will be completed within 4 days. How many million vehicles should be produced on average every day?
一个玩具厂计划生产5.2万辆电动汽车，已经生产了8天，每天生产0.35万辆，余下的要求在4天内完成．平均每天应生产多少万辆？
<gadget id="calculator">0.35 * 8</gadget>
<output>2.8</output>

<gadget id="calculator">5.2 - 2.8</gadget>
<output>2.4</output>

<gadget id="calculator">2.4 / 4</gadget>
<output>0.6</output>

<result>0.6</result>