No, that is not what rounding means.
Rounding is a way of getting a simpler, more usable number. If we were talking about money, $0.857142857142571 would be more useful if we rounded it to the hundreds place, because we don't use anything smaller than $0.01 when we buy and sell stuff.
Here's the hundredths place: 0.8571428571428571
The next digit to the right (7) is greater than or equal to 5, so the 5 in the hundredths place rounds up.
Answer: 0.86