We look at the division of 645484 by 22 
The aim is to understand the frequency of 22 in 645484.

Step 1:
22 can be fit into 6 0 times, resulting in a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 22

Advancing to step 2:
When dividing 64 by 22, we get 2 with 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.
Take the next digit (5) from the dividend and append it to 20, then repeat: 205 / 22

Moving on to step 3:
22 can be fit into 205 9 times, resulting in a remainder of 7.
The next digit of our result is 9. 
Result so far: 29.0
Subtracting 198 from 205 leaves us with 7.
Bring next digit (4) of the dividend behind the 7 and repeat the process: 74 / 22

On to step 4:
The number 22 fits into 74 3 times, leaving a remainder of 8.
Put 3 as the next digit of the answer. 
Result so far: 293.0
The remainder is 8 after subtracting 66 from 74.
Grab the next digit (8) from the dividend, add it to 8, then carry on: 88 / 22

Moving on to step 5:
When dividing 88 by 22, we get 4 with a remainder of 0.
Put 4 as the next digit of the answer. 
Result so far: 2934.0
If we subtract 88 from 88, we get 0.
Append the next digit (4) from the dividend to 0 and continue with: 4 / 22

Moving on to step 6:
When dividing 4 by 22, we get 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 29340.0
If we take 0 away from 4, 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.

On to step 7:
22 goes into 40 1 times with a remainder of 18.
Use 1 as the next digit of our solution. 
Result so far: 29340.1
Subtracting 22 from 40 leaves us with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Advancing to step 8:
When dividing 180 by 22, we get 8 with a remainder of 4.
Use 8 as the next digit of our solution. 
Result so far: 29340.18
Subtracting 176 from 180 leaves us 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.

Let's proceed to step 9:
If we divide 40 by 22, we get 1 and a remainder of 18.
Use 1 as the next digit of our solution. 
Result so far: 29340.181
Subtract 22 from 40 to 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.

On to step 10:
22 can be fit into 180 8 times, resulting in a remainder of 4.
Use 8 as the next digit of our solution. 
Result so far: 29340.1818
Deduct 176 from 180 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.

Step 11:
22 goes into 40 1 times with a remainder of 18.
Record the quotient 1 as the next digit in the result. 
Result so far: 29340.18181
If we subtract 22 from 40, 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.

On to step 12:
180 divided by 22 is 8 with a remainder of 4.
The number 8 becomes the next digit in our result. 
Result so far: 29340.181818
Subtracting 176 from 180 leaves us 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.

Let's proceed to step 13:
The number 22 fits into 40 1 times, leaving a remainder of 18.
Put 1 as the next digit of the answer. 
Result so far: 29340.1818181
Subtract 22 from 40 to 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 14:
When dividing 180 by 22, we get 8 with a remainder of 4.
The next digit of our result is 8. 
Result so far: 29340.18181818
Deduct 176 from 180 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.

After the division, we end up with 29340.18181818 and a remainder of 4e-09.