After adding a "0" at the end of a number, the resulting number is 54 greater than the original number. What is the original number?
在一个数的末尾添上一个"0"后，得到的数比原来的数大54，原来的数是多少？
<gadget id="calculator">10 - 1</gadget>
<output>9</output>

<gadget id="calculator">54 / 9</gadget>
<output>6</output>

<result>6</result>