According to spot checks, 82 out of every 100 pieces of this batch of products reached the first-class standard. There are a total of 10,000 pieces of this batch of products. How many pieces meet the standard of first-class products?
根据抽查，这批产品每100件中达到一等品标准的有82件．这批产品一共有1万件，达到一等品标准的大约有多少件？
<gadget id="calculator">10_000 / 100</gadget>
<output>100</output>

<gadget id="calculator">100 * 82</gadget>
<output>8_200</output>

<result>8_200</result>