Guangming Light Bulb Factory tried to produce a new type of energy-saving lamp. The first batch produced 850. After inspection, 10 of them were unqualified. How many boxes are needed to pack every 8 qualified energy-saving lamps into a box?
光明灯泡厂试验生产一种新型节能灯，第一批生产了850个，经检验，其中有10个不合格，将合格的节能灯每8个装一盒，需要多少个包装盒？
<gadget id="calculator">850 - 10</gadget>
<output>840</output>

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

<result>105</result>