620 minus the quotient of 68 divided by 1020, what is the difference obtained by multiplying by 1000 times?
620减去68除1020的商，所得的差再扩大1000倍是多少？
<gadget id="calculator">1_020 / 68</gadget>
<output>15</output>

<gadget id="calculator">620 - 15</gadget>
<output>605</output>

<gadget id="calculator">605 * 1_000</gadget>
<output>605_000</output>

<result>605_000</result>