Xinxing TV Factory produced a total of 840 TV sets in the first 8 days of May. Based on this calculation, how many TV sets can be produced in the days after this month? (Solve with the knowledge of proportion)
新星电视机厂在五月的前8天共生产电视机840台，照这样计算，在这个月以后的日子里可生产电视机多少台？(用比例的知识解)
<gadget id="calculator">840 / 8</gadget>
<output>105</output>

<gadget id="calculator">105 * 31</gadget>
<output>3_255</output>

<gadget id="calculator">105 * 8</gadget>
<output>840</output>

<gadget id="calculator">3_255 - 840</gadget>
<output>2_415</output>

<result>2_415</result>