80*(1/8)/(1/800)*(1/800).
80*(1/8)/(1/800)*(1/800)．
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">1 / 800</gadget>
<output>1/800 = around 0.00125</output>

<gadget id="calculator">(1/8) / (1/800)</gadget>
<output>100</output>

<gadget id="calculator">80 * 100 * (1/800)</gadget>
<output>10</output>

<result>10</result>