We're dividing 10020696 by 821 
The aim is to understand the frequency of 821 in 10020696.

On to step 1:
When dividing 1 by 821, we get 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Fetch the next digit (0) from the dividend, attach it to 1 and continue: 10 / 821

Advancing to step 2:
821 can be fit into 10 0 times, resulting in a remainder of 10.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 10 to get 10.
Fetch the next digit (0) from the dividend, attach it to 10 and continue: 100 / 821

Moving on to step 3:
The number 821 fits into 100 0 times, leaving a remainder of 100.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 100, we end up with 100.
Fetch the next digit (2) from the dividend, attach it to 100 and continue: 1002 / 821

Moving on to step 4:
If we divide 1002 by 821, we get 1 and a remainder of 181.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 821 from 1002 to get 181.
Bring next digit (0) of the dividend behind the 181 and repeat the process: 1810 / 821

On to step 5:
The number 821 fits into 1810 2 times, leaving a remainder of 168.
Use 2 as the next digit of our solution. 
Result so far: 12.0
If we subtract 1642 from 1810, we get 168.
Grab the next digit (6) from the dividend, add it to 168, then carry on: 1686 / 821

Advancing to step 6:
When dividing 1686 by 821, we get 2 with a remainder of 44.
Write down 2 as next digit of the result. 
Result so far: 122.0
Subtract 1642 from 1686 to get 44.
Fetch the next digit (9) from the dividend, attach it to 44 and continue: 449 / 821

Let's proceed to step 7:
449 divided by 821 is 0 with a remainder of 449.
Use 0 as the next digit of our solution. 
Result so far: 1220.0
Deduct 0 from 449 and we're left with 449.
Grab the next digit (6) from the dividend, add it to 449, then carry on: 4496 / 821

Going ahead to step 8:
If we divide 4496 by 821, we get 5 and a remainder of 391.
The next digit of our result is 5. 
Result so far: 12205.0
If we take 4105 away from 4496, we end up with 391.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3910, and continue the process.

Let's proceed to step 9:
3910 divided by 821 is 4 with a remainder of 626.
The number 4 becomes the next digit in our result. 
Result so far: 12205.4
If we subtract 3284 from 3910, we get 626.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6260, and continue the process.

Going ahead to step 10:
The number 821 fits into 6260 7 times, leaving a remainder of 513.
Put 7 as the next digit of the answer. 
Result so far: 12205.47
Subtracting 5747 from 6260 leaves us with 513.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5130, and continue the process.

Step 11:
The number 821 fits into 5130 6 times, leaving a remainder of 204.
Put 6 as the next digit of the answer. 
Result so far: 12205.476
If we subtract 4926 from 5130, we get 204.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2040, and continue the process.

Going ahead to step 12:
The number 821 fits into 2040 2 times, leaving a remainder of 398.
Record the quotient 2 as the next digit in the result. 
Result so far: 12205.4762
If we take 1642 away from 2040, we end up with 398.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3980, and continue the process.

Advancing to step 13:
821 can be fit into 3980 4 times, resulting in a remainder of 696.
Use 4 as the next digit of our solution. 
Result so far: 12205.47624
If we subtract 3284 from 3980, we get 696.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6960, and continue the process.

On to step 14:
6960 divided by 821 is 8 with a remainder of 392.
Put 8 as the next digit of the answer. 
Result so far: 12205.476248
Deduct 6568 from 6960 and we're left with 392.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3920, and continue the process.

Moving on to step 15:
821 can be fit into 3920 4 times, resulting in a remainder of 636.
Write down 4 as next digit of the result. 
Result so far: 12205.4762484
Deduct 3284 from 3920 and we're left with 636.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6360, and continue the process.

Step 16:
If we divide 6360 by 821, we get 7 and a remainder of 613.
Use 7 as the next digit of our solution. 
Result so far: 12205.47624847
Subtract 5747 from 6360 to get 613.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6130, and continue the process.

After the division, we end up with 12205.47624847 and a remainder of 6.13e-07.