We're dividing 681117 by 21 
The aim is to understand the frequency of 21 in 681117.

Advancing to step 1:
If we divide 6 by 21, we get 0 and a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Append the next digit (8) from the dividend to 6 and continue with: 68 / 21

Moving on to step 2:
68 divided by 21 is 3 with a remainder of 5.
The next digit of our result is 3. 
Result so far: 3.0
Deduct 63 from 68 and we're left with 5.
Bring next digit (1) of the dividend behind the 5 and repeat the process: 51 / 21

Step 3:
21 goes into 51 2 times with a remainder of 9.
Write down 2 as next digit of the result. 
Result so far: 32.0
Subtracting 42 from 51 leaves us with 9.
Append the next digit (1) from the dividend to 9 and continue with: 91 / 21

Let's proceed to step 4:
If we divide 91 by 21, we get 4 and a remainder of 7.
The next digit of our result is 4. 
Result so far: 324.0
If we take 84 away from 91, we end up with 7.
Append the next digit (1) from the dividend to 7 and continue with: 71 / 21

On to step 5:
When dividing 71 by 21, we get 3 with a remainder of 8.
Write down 3 as next digit of the result. 
Result so far: 3243.0
Deduct 63 from 71 and we're left with 8.
Append the next digit (7) from the dividend to 8 and continue with: 87 / 21

Going ahead to step 6:
When dividing 87 by 21, we get 4 with a remainder of 3.
Write down 4 as next digit of the result. 
Result so far: 32434.0
If we take 84 away from 87, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 7:
When dividing 30 by 21, we get 1 with a remainder of 9.
The next digit of our result is 1. 
Result so far: 32434.1
Subtract 21 from 30 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Going ahead to step 8:
21 can be fit into 90 4 times, resulting in a remainder of 6.
Write down 4 as next digit of the result. 
Result so far: 32434.14
The remainder is 6 after subtracting 84 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 9:
The number 21 fits into 60 2 times, leaving a remainder of 18.
Use 2 as the next digit of our solution. 
Result so far: 32434.142
If we subtract 42 from 60, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 10:
21 goes into 180 8 times with a remainder of 12.
The number 8 becomes the next digit in our result. 
Result so far: 32434.1428
The remainder is 12 after subtracting 168 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 11:
If we divide 120 by 21, we get 5 and a remainder of 15.
Put 5 as the next digit of the answer. 
Result so far: 32434.14285
If we take 105 away from 120, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 12:
If we divide 150 by 21, we get 7 and a remainder of 3.
The number 7 becomes the next digit in our result. 
Result so far: 32434.142857
Subtracting 147 from 150 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 13:
If we divide 30 by 21, we get 1 and a remainder of 9.
The next digit of our result is 1. 
Result so far: 32434.1428571
If we subtract 21 from 30, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Step 14:
If we divide 90 by 21, we get 4 and a remainder of 6.
The number 4 becomes the next digit in our result. 
Result so far: 32434.14285714
The remainder is 6 after subtracting 84 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

The quotient of the division is 32434.14285714, and the remainder is 6e-09.