645184 ÷ 22 
The aim is to understand the frequency of 22 in 645184.

Going ahead to step 1:
22 goes into 6 0 times with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 22

Moving on to step 2:
If we divide 64 by 22, we get 2 and a remainder of 20.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtract 44 from 64 to get 20.
Bring next digit (5) of the dividend behind the 20 and repeat the process: 205 / 22

Let's proceed to step 3:
The number 22 fits into 205 9 times, leaving a remainder of 7.
The next digit of our result is 9. 
Result so far: 29.0
The remainder is 7 after subtracting 198 from 205.
Bring next digit (1) of the dividend behind the 7 and repeat the process: 71 / 22

Advancing to step 4:
When dividing 71 by 22, we get 3 with a remainder of 5.
The number 3 becomes the next digit in our result. 
Result so far: 293.0
Subtract 66 from 71 to get 5.
Include the next digit (8) from the dividend after 5, then repeat: 58 / 22

Advancing to step 5:
22 goes into 58 2 times with a remainder of 14.
Write down 2 as next digit of the result. 
Result so far: 2932.0
If we take 44 away from 58, we end up with 14.
Include the next digit (4) from the dividend after 14, then repeat: 144 / 22

Moving on to step 6:
The number 22 fits into 144 6 times, leaving a remainder of 12.
Put 6 as the next digit of the answer. 
Result so far: 29326.0
Subtracting 132 from 144 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 7:
The number 22 fits into 120 5 times, leaving a remainder of 10.
The next digit of our result is 5. 
Result so far: 29326.5
Subtract 110 from 120 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.

Moving on to step 8:
22 can be fit into 100 4 times, resulting in a remainder of 12.
Record the quotient 4 as the next digit in the result. 
Result so far: 29326.54
Deduct 88 from 100 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 9:
120 divided by 22 is 5 with a remainder of 10.
The next digit of our result is 5. 
Result so far: 29326.545
Subtract 110 from 120 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.

Step 10:
22 can be fit into 100 4 times, resulting in a remainder of 12.
Write down 4 as next digit of the result. 
Result so far: 29326.5454
If we take 88 away from 100, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 11:
22 can be fit into 120 5 times, resulting in a remainder of 10.
Use 5 as the next digit of our solution. 
Result so far: 29326.54545
If we take 110 away from 120, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 12:
22 can be fit into 100 4 times, resulting in a remainder of 12.
Use 4 as the next digit of our solution. 
Result so far: 29326.545454
Subtracting 88 from 100 leaves us with 12.
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 13:
The number 22 fits into 120 5 times, leaving a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 29326.5454545
If we take 110 away from 120, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 14:
The number 22 fits into 100 4 times, leaving a remainder of 12.
Record the quotient 4 as the next digit in the result. 
Result so far: 29326.54545454
Subtracting 88 from 100 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

After the division, we end up with 29326.54545454 and a remainder of 1.2e-08.