100 yen can be converted into RMB 7.89, and how much can 800 yen be converted into RMB.
100日元兑换人民币7.89元，800日元可兑换人民币多少元．
<gadget id="calculator">800 / 100</gadget>
<output>8</output>

<gadget id="calculator">8 * 7.89</gadget>
<output>63.12</output>

<result>63.12</result>