We look at the division of 485258 by 81 
We want to figure out the number of times 485258 can be divided by 81.

Let's proceed to step 1:
If we divide 4 by 81, we get 0 and a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Include the next digit (8) from the dividend after 4, then repeat: 48 / 81

On to step 2:
81 can be fit into 48 0 times, resulting in a remainder of 48.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 48 to get 48.
Append the next digit (5) from the dividend to 48 and continue with: 485 / 81

Advancing to step 3:
When dividing 485 by 81, we get 5 with a remainder of 80.
The next digit of our result is 5. 
Result so far: 5.0
The remainder is 80 after subtracting 405 from 485.
Fetch the next digit (2) from the dividend, attach it to 80 and continue: 802 / 81

Moving on to step 4:
The number 81 fits into 802 9 times, leaving a remainder of 73.
Record the quotient 9 as the next digit in the result. 
Result so far: 59.0
Subtracting 729 from 802 leaves us with 73.
Include the next digit (5) from the dividend after 73, then repeat: 735 / 81

Step 5:
If we divide 735 by 81, we get 9 and a remainder of 6.
Put 9 as the next digit of the answer. 
Result so far: 599.0
Subtract 729 from 735 to get 6.
Include the next digit (8) from the dividend after 6, then repeat: 68 / 81

Let's proceed to step 6:
81 goes into 68 0 times with a remainder of 68.
The next digit of our result is 0. 
Result so far: 5990.0
Deduct 0 from 68 and we're left with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

On to step 7:
When dividing 680 by 81, we get 8 with a remainder of 32.
The next digit of our result is 8. 
Result so far: 5990.8
If we take 648 away from 680, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Moving on to step 8:
When dividing 320 by 81, we get 3 with a remainder of 77.
Write down 3 as next digit of the result. 
Result so far: 5990.83
Subtracting 243 from 320 leaves us with 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

On to step 9:
If we divide 770 by 81, we get 9 and a remainder of 41.
The next digit of our result is 9. 
Result so far: 5990.839
If we take 729 away from 770, we end up with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Advancing to step 10:
The number 81 fits into 410 5 times, leaving a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 5990.8395
Deduct 405 from 410 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 11:
When dividing 50 by 81, we get 0 with a remainder of 50.
Write down 0 as next digit of the result. 
Result so far: 5990.8395
The remainder is 50 after subtracting 0 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 12:
When dividing 500 by 81, we get 6 with a remainder of 14.
Put 6 as the next digit of the answer. 
Result so far: 5990.839506
Subtract 486 from 500 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 13:
The number 81 fits into 140 1 times, leaving a remainder of 59.
Put 1 as the next digit of the answer. 
Result so far: 5990.8395061
Deduct 81 from 140 and we're left with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Step 14:
When dividing 590 by 81, we get 7 with a remainder of 23.
Write down 7 as next digit of the result. 
Result so far: 5990.83950617
Subtract 567 from 590 to get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

After the division, we end up with 5990.83950617 and a remainder of 2.3e-08.