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To convert an octal number to decimal, write out the number to be converted, placing each digit
under the proper position.
Example:
Next, multiply the decimal equivalent by the corresponding digit of the octal number; then, add this
column of figures for the final solution:
Solution: 7438 is equal to 48310
Now follow the conversion of 265258 to decimal:
Solution: 11,60510 is the decimal equivalent of 26,5258
To convert a fraction or a mixed number, simply use the same procedure.
Example: Change .58 to decimal: