When Xiaohong calculates the division, she writes the divisor 15 as 51, and the resulting quotient of 3 has a remainder of 42. What is the correct calculation result?
小红在计算除法时，把除数15写成51，结果得到的商3还余42，正确的计算结果是多少．
<gadget id="calculator">3 * 51</gadget>
<output>153</output>

<gadget id="calculator">153 + 42</gadget>
<output>195</output>

<gadget id="calculator">195 / 15</gadget>
<output>13</output>

<result>13</result>