Here you see step by step process of decimal to octal number conversion. We have to follow some steps one by one those are

We have to divide the decimal number by 8 repeatedly, until the quotient of zero is obtained.

The remainders are noted down for each of the division steps.

Then the column of the remainder is read in reverse order. That means we have to count those reminder from bottom to top.

In bellow I give you an example to show the process.

Let we have to convert **250 _{10} **in octal. We know the base of octal number systemÂ is 8. So we have to divide the decimal number by 8.

So the equivalent number **250 _{10} = 372_{8}**

So I think the above example will clear the process of decimal to octalÂ number conversion.