If the decimal point of a decimal is moved one bit to the right, it will be 6.48 larger than the original one. What is the original decimal?
一个小数的小数点向右移动一位就比原来大6.48，原来这个小数是多少．
<gadget id="calculator">10 - 1</gadget>
<output>9</output>

<gadget id="calculator">6.48 / 9</gadget>
<output>0.72</output>

<result>0.72</result>