We look at the division of 821584 by 30 
We're looking to find how many times 30 goes into 821584.

Step 1:
If we divide 8 by 30, we get 0 and a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Bring next digit (2) of the dividend behind the 8 and repeat the process: 82 / 30

On to step 2:
82 divided by 30 is 2 with a remainder of 22.
The next digit of our result is 2. 
Result so far: 2.0
Subtract 60 from 82 to get 22.
Grab the next digit (1) from the dividend, add it to 22, then carry on: 221 / 30

Advancing to step 3:
30 goes into 221 7 times with a remainder of 11.
Record the quotient 7 as the next digit in the result. 
Result so far: 27.0
If we take 210 away from 221, we end up with 11.
Bring next digit (5) of the dividend behind the 11 and repeat the process: 115 / 30

Let's proceed to step 4:
115 divided by 30 is 3 with a remainder of 25.
The next digit of our result is 3. 
Result so far: 273.0
If we subtract 90 from 115, we get 25.
Take the next digit (8) from the dividend and append it to 25, then repeat: 258 / 30

On to step 5:
30 goes into 258 8 times with a remainder of 18.
Record the quotient 8 as the next digit in the result. 
Result so far: 2738.0
Subtracting 240 from 258 leaves us with 18.
Append the next digit (4) from the dividend to 18 and continue with: 184 / 30

Step 6:
When dividing 184 by 30, we get 6 with a remainder of 4.
Record the quotient 6 as the next digit in the result. 
Result so far: 27386.0
Subtract 180 from 184 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 7:
The number 30 fits into 40 1 times, leaving a remainder of 10.
Use 1 as the next digit of our solution. 
Result so far: 27386.1
If we subtract 30 from 40, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 8:
100 divided by 30 is 3 with a remainder of 10.
The next digit of our result is 3. 
Result so far: 27386.13
Subtracting 90 from 100 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 9:
If we divide 100 by 30, we get 3 and a remainder of 10.
Record the quotient 3 as the next digit in the result. 
Result so far: 27386.133
The remainder is 10 after subtracting 90 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The final outcome is 27386.133, with a leftover of 0.001.