We look at the division of 872390 by 22 
The aim is to understand the frequency of 22 in 872390.

Advancing to step 1:
The number 22 fits into 8 0 times, leaving a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Take the next digit (7) from the dividend and append it to 8, then repeat: 87 / 22

Moving on to step 2:
The number 22 fits into 87 3 times, leaving a remainder of 21.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtracting 66 from 87 leaves us with 21.
Take the next digit (2) from the dividend and append it to 21, then repeat: 212 / 22

Going ahead to step 3:
If we divide 212 by 22, we get 9 and a remainder of 14.
Record the quotient 9 as the next digit in the result. 
Result so far: 39.0
Subtract 198 from 212 to get 14.
Fetch the next digit (3) from the dividend, attach it to 14 and continue: 143 / 22

Moving on to step 4:
22 goes into 143 6 times with a remainder of 11.
Put 6 as the next digit of the answer. 
Result so far: 396.0
If we take 132 away from 143, we end up with 11.
Take the next digit (9) from the dividend and append it to 11, then repeat: 119 / 22

Step 5:
The number 22 fits into 119 5 times, leaving a remainder of 9.
Record the quotient 5 as the next digit in the result. 
Result so far: 3965.0
If we take 110 away from 119, we end up with 9.
Fetch the next digit (0) from the dividend, attach it to 9 and continue: 90 / 22

Advancing to step 6:
90 divided by 22 is 4 with a remainder of 2.
Put 4 as the next digit of the answer. 
Result so far: 39654.0
Subtract 88 from 90 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 7:
If we divide 20 by 22, we get 0 and a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 39654.0
Subtract 0 from 20 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 8:
When dividing 200 by 22, we get 9 with a remainder of 2.
The next digit of our result is 9. 
Result so far: 39654.09
If we subtract 198 from 200, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 9:
If we divide 20 by 22, we get 0 and a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 39654.09
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 10:
200 divided by 22 is 9 with a remainder of 2.
The next digit of our result is 9. 
Result so far: 39654.0909
The remainder is 2 after subtracting 198 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 11:
20 divided by 22 is 0 with a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 39654.0909
If we subtract 0 from 20, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 12:
200 divided by 22 is 9 with a remainder of 2.
Write down 9 as next digit of the result. 
Result so far: 39654.090909
The remainder is 2 after subtracting 198 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 13:
22 goes into 20 0 times with a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 39654.090909
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 14:
The number 22 fits into 200 9 times, leaving a remainder of 2.
The number 9 becomes the next digit in our result. 
Result so far: 39654.09090909
The remainder is 2 after subtracting 198 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Our division results in 39654.09090909 with a remaining 2e-09.