Octal value of 9000 decimal

Result

Decimal number — 9000

Octal number — 21450

Detailed

1. 9000 / 8 = 1125.0
   | 0 - remainder
2. 1125 / 8 = 140.6
   | 5 - remainder
3. 140 / 8 = 17.5
   | 4 - remainder
4. 17 / 8 = 2.1
   | 1 - remainder
5. 2 / 8 = 0.2
   | 2 - remainder

Read listed remainders in reverse:

21450 octal number