We divide 661644 by 22
The aim is to understand the frequency of 22 in 661644.

Advancing to step 1:
If we divide 6 by 22, we get 0 and a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 22

Moving on to step 2:
If we divide 66 by 22, we get 3 and a remainder of 0.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we subtract 66 from 66, we get 0.
Bring next digit (1) of the dividend behind the 0 and repeat the process: 1 / 22

Let's proceed to step 3:
If we divide 1 by 22, we get 0 and a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 30.0
Deduct 0 from 1 and we're left with 1.
Fetch the next digit (6) from the dividend, attach it to 1 and continue: 16 / 22

Let's proceed to step 4:
22 goes into 16 0 times with a remainder of 16.
Write down 0 as next digit of the result. 
Result so far: 300.0
Deduct 0 from 16 and we're left with 16.
Bring next digit (4) of the dividend behind the 16 and repeat the process: 164 / 22

Step 5:
The number 22 fits into 164 7 times, leaving a remainder of 10.
The number 7 becomes the next digit in our result. 
Result so far: 3007.0
Deduct 154 from 164 and we're left with 10.
Take the next digit (4) from the dividend and append it to 10, then repeat: 104 / 22

Let's proceed to step 6:
22 can be fit into 104 4 times, resulting in a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 30074.0
If we subtract 88 from 104, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 7:
If we divide 160 by 22, we get 7 and a remainder of 6.
Use 7 as the next digit of our solution. 
Result so far: 30074.7
Subtract 154 from 160 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 8:
60 divided by 22 is 2 with a remainder of 16.
Write down 2 as next digit of the result. 
Result so far: 30074.72
The remainder is 16 after subtracting 44 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 9:
If we divide 160 by 22, we get 7 and a remainder of 6.
Record the quotient 7 as the next digit in the result. 
Result so far: 30074.727
Deduct 154 from 160 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 10:
60 divided by 22 is 2 with a remainder of 16.
Write down 2 as next digit of the result. 
Result so far: 30074.7272
Deduct 44 from 60 and we're left 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.

Let's proceed to step 11:
22 goes into 160 7 times with a remainder of 6.
Put 7 as the next digit of the answer. 
Result so far: 30074.72727
Subtracting 154 from 160 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 12:
22 goes into 60 2 times with a remainder of 16.
The number 2 becomes the next digit in our result. 
Result so far: 30074.727272
The remainder is 16 after subtracting 44 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 13:
When dividing 160 by 22, we get 7 with a remainder of 6.
Use 7 as the next digit of our solution. 
Result so far: 30074.7272727
If we subtract 154 from 160, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 14:
22 can be fit into 60 2 times, resulting in a remainder of 16.
The number 2 becomes the next digit in our result. 
Result so far: 30074.72727272
Subtracting 44 from 60 leaves us 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.

The final result is 30074.72727272 with a remainder of 1.6e-08.