The product of the two factors is 86.4. If two factors are multiplied by 10 at the same time, what is the product?
两个因数的积是86.4．如果两个因数同时扩大10倍，则积是多少．
<gadget id="calculator">86.4 * 10 * 10</gadget>
<output>8_640</output>

<result>8_640</result>