We divide 821129 by 86
We're looking to find how many times 86 goes into 821129.

Moving on to step 1:
If we divide 8 by 86, we get 0 and a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Include the next digit (2) from the dividend after 8, then repeat: 82 / 86

Advancing to step 2:
86 can be fit into 82 0 times, resulting in a remainder of 82.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 82, we end up with 82.
Fetch the next digit (1) from the dividend, attach it to 82 and continue: 821 / 86

Let's proceed to step 3:
86 goes into 821 9 times with a remainder of 47.
Use 9 as the next digit of our solution. 
Result so far: 9.0
The remainder is 47 after subtracting 774 from 821.
Append the next digit (1) from the dividend to 47 and continue with: 471 / 86

Moving on to step 4:
The number 86 fits into 471 5 times, leaving a remainder of 41.
Write down 5 as next digit of the result. 
Result so far: 95.0
Subtracting 430 from 471 leaves us with 41.
Grab the next digit (2) from the dividend, add it to 41, then carry on: 412 / 86

Step 5:
The number 86 fits into 412 4 times, leaving a remainder of 68.
The next digit of our result is 4. 
Result so far: 954.0
Subtract 344 from 412 to get 68.
Append the next digit (9) from the dividend to 68 and continue with: 689 / 86

On to step 6:
689 divided by 86 is 8 with a remainder of 1.
Use 8 as the next digit of our solution. 
Result so far: 9548.0
If we subtract 688 from 689, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 7:
86 goes into 10 0 times with a remainder of 10.
The next digit of our result is 0. 
Result so far: 9548.0
If we subtract 0 from 10, 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.

Going ahead to step 8:
100 divided by 86 is 1 with a remainder of 14.
Write down 1 as next digit of the result. 
Result so far: 9548.01
Subtract 86 from 100 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 9:
140 divided by 86 is 1 with a remainder of 54.
The next digit of our result is 1. 
Result so far: 9548.011
The remainder is 54 after subtracting 86 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

After the division, we end up with 9548.011 and a remainder of 0.0054.