Let's divide 22013242 by 21
The aim is to understand the frequency of 21 in 22013242.

Going ahead to step 1:
If we divide 2 by 21, we get 0 and a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Grab the next digit (2) from the dividend, add it to 2, then carry on: 22 / 21

Advancing to step 2:
The number 21 fits into 22 1 times, leaving a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 21 from 22, we get 1.
Fetch the next digit (0) from the dividend, attach it to 1 and continue: 10 / 21

Moving on to step 3:
21 can be fit into 10 0 times, resulting in a remainder of 10.
The next digit of our result is 0. 
Result so far: 10.0
Subtracting 0 from 10 leaves us with 10.
Fetch the next digit (1) from the dividend, attach it to 10 and continue: 101 / 21

Moving on to step 4:
101 divided by 21 is 4 with a remainder of 17.
Write down 4 as next digit of the result. 
Result so far: 104.0
Deduct 84 from 101 and we're left with 17.
Include the next digit (3) from the dividend after 17, then repeat: 173 / 21

Step 5:
173 divided by 21 is 8 with a remainder of 5.
Use 8 as the next digit of our solution. 
Result so far: 1048.0
If we take 168 away from 173, we end up with 5.
Fetch the next digit (2) from the dividend, attach it to 5 and continue: 52 / 21

Let's proceed to step 6:
If we divide 52 by 21, we get 2 and a remainder of 10.
Use 2 as the next digit of our solution. 
Result so far: 10482.0
The remainder is 10 after subtracting 42 from 52.
Include the next digit (4) from the dividend after 10, then repeat: 104 / 21

On to step 7:
21 goes into 104 4 times with a remainder of 20.
Write down 4 as next digit of the result. 
Result so far: 104824.0
If we take 84 away from 104, we end up with 20.
Fetch the next digit (2) from the dividend, attach it to 20 and continue: 202 / 21

Going ahead to step 8:
The number 21 fits into 202 9 times, leaving a remainder of 13.
Put 9 as the next digit of the answer. 
Result so far: 1048249.0
If we take 189 away from 202, we end up with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Step 9:
If we divide 130 by 21, we get 6 and a remainder of 4.
Record the quotient 6 as the next digit in the result. 
Result so far: 1048249.6
Deduct 126 from 130 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 10:
If we divide 40 by 21, we get 1 and a remainder of 19.
Use 1 as the next digit of our solution. 
Result so far: 1048249.61
Subtracting 21 from 40 leaves us with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Step 11:
If we divide 190 by 21, we get 9 and a remainder of 1.
Use 9 as the next digit of our solution. 
Result so far: 1048249.619
Deduct 189 from 190 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 12:
21 goes into 10 0 times with a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 1048249.619
Subtract 0 from 10 to 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 13:
The number 21 fits into 100 4 times, leaving a remainder of 16.
Record the quotient 4 as the next digit in the result. 
Result so far: 1048249.61904
If we take 84 away from 100, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 14:
160 divided by 21 is 7 with a remainder of 13.
Write down 7 as next digit of the result. 
Result so far: 1048249.619047
Subtracting 147 from 160 leaves us with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Going ahead to step 15:
If we divide 130 by 21, we get 6 and a remainder of 4.
Put 6 as the next digit of the answer. 
Result so far: 1048249.6190476
If we take 126 away from 130, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 16:
If we divide 40 by 21, we get 1 and a remainder of 19.
Write down 1 as next digit of the result. 
Result so far: 1048249.61904761
Deduct 21 from 40 and we're left with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

In conclusion, the division gives 1048249.61904761 with a balance of 1.9e-08.