When a number is divided by 6, the quotient is the largest one-digit number with a remainder, what is the largest number.
一个数除以6，商是最大的一位数，且有余数，这个数最大是多少．
<gadget id="calculator">6 * 9</gadget>
<output>54</output>

<gadget id="calculator">54 + 5</gadget>
<output>59</output>

<result>59</result>