Xiaofang walked a total of 90 steps from the first floor to the sixth floor, so when she walked 198 steps, how many floors did she reach?
小芳从一楼到六楼共走了90级台阶，那么她走了198级台阶时，她到了多少楼．
<gadget id="calculator">6 - 1</gadget>
<output>5</output>

<gadget id="calculator">90 / 5</gadget>
<output>18</output>

<gadget id="calculator">198 / 18</gadget>
<output>11</output>

<gadget id="calculator">11 + 1</gadget>
<output>12</output>

<result>12</result>