There is no special symbolic significance to the number 830. But the meaning of those digits in your specific dream refers to something in your own particular life. It might reflect the need to get to school or work aby 8:30 a.m., or to be home by 8:30 p.m. It could reflect a specific date, 8/30, which is August 30th. Yet again, it might reflect a room number, a street address, or a fragment of a phone number. Unfortunately, numbers seen in dreams tend to have associations that are not particularly meaningful, and are often random bits of consciousness drifting through one's sleep.
You can't 830 is a number.
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As a number it is: 830,000,000
830 is the simplest form unless you mean 8/30 in which case the answer is 4/15.
It is 1-407-830-4040
There is no biblical significance to this number.
830
It is 1-407-830-4040
USA - 830 highways
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Numbers do not have specific universal meanings in dreams. In other words, the number 9 in your dream could refer to an anniversary or address or the date of an appointment, while in another person's dream, the same number would mean something entirely different.