When two numbers are divided, the quotient is 48 and the remainder is 15. What is the smallest dividend?
两个数相除，商是48，余数是15，被除数最小是多少？
<gadget id="calculator">15 + 1</gadget>
<output>16</output>

<gadget id="calculator">48 * 16</gadget>
<output>768</output>

<gadget id="calculator">768 + 15</gadget>
<output>783</output>

<result>783</result>