We look at the division of 4063996 by 223 
The aim is to understand the frequency of 223 in 4063996.

On to step 1:
223 goes into 4 0 times with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Bring next digit (0) of the dividend behind the 4 and repeat the process: 40 / 223

Going ahead to step 2:
223 can be fit into 40 0 times, resulting in a remainder of 40.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 40 to get 40.
Grab the next digit (6) from the dividend, add it to 40, then carry on: 406 / 223

Step 3:
223 can be fit into 406 1 times, resulting in a remainder of 183.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 223 from 406, we get 183.
Append the next digit (3) from the dividend to 183 and continue with: 1833 / 223

Step 4:
223 can be fit into 1833 8 times, resulting in a remainder of 49.
The next digit of our result is 8. 
Result so far: 18.0
Subtracting 1784 from 1833 leaves us with 49.
Bring next digit (9) of the dividend behind the 49 and repeat the process: 499 / 223

Step 5:
223 can be fit into 499 2 times, resulting in a remainder of 53.
The number 2 becomes the next digit in our result. 
Result so far: 182.0
The remainder is 53 after subtracting 446 from 499.
Fetch the next digit (9) from the dividend, attach it to 53 and continue: 539 / 223

On to step 6:
223 can be fit into 539 2 times, resulting in a remainder of 93.
Use 2 as the next digit of our solution. 
Result so far: 1822.0
If we take 446 away from 539, we end up with 93.
Take the next digit (6) from the dividend and append it to 93, then repeat: 936 / 223

On to step 7:
223 can be fit into 936 4 times, resulting in a remainder of 44.
The next digit of our result is 4. 
Result so far: 18224.0
Subtracting 892 from 936 leaves us with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Going ahead to step 8:
When dividing 440 by 223, we get 1 with a remainder of 217.
Record the quotient 1 as the next digit in the result. 
Result so far: 18224.1
Subtract 223 from 440 to get 217.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2170, and continue the process.

Let's proceed to step 9:
223 can be fit into 2170 9 times, resulting in a remainder of 163.
Put 9 as the next digit of the answer. 
Result so far: 18224.19
The remainder is 163 after subtracting 2007 from 2170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1630, and continue the process.

Advancing to step 10:
When dividing 1630 by 223, we get 7 with a remainder of 69.
Use 7 as the next digit of our solution. 
Result so far: 18224.197
If we subtract 1561 from 1630, we get 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

On to step 11:
223 goes into 690 3 times with a remainder of 21.
Use 3 as the next digit of our solution. 
Result so far: 18224.1973
Subtract 669 from 690 to get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Let's proceed to step 12:
The number 223 fits into 210 0 times, leaving a remainder of 210.
The next digit of our result is 0. 
Result so far: 18224.1973
If we take 0 away from 210, we end up with 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Going ahead to step 13:
If we divide 2100 by 223, we get 9 and a remainder of 93.
Write down 9 as next digit of the result. 
Result so far: 18224.197309
If we subtract 2007 from 2100, we get 93.
Since there are no more digits in the dividend, we add a zero to the remainder making it 930, and continue the process.

Advancing to step 14:
If we divide 930 by 223, we get 4 and a remainder of 38.
Put 4 as the next digit of the answer. 
Result so far: 18224.1973094
If we take 892 away from 930, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

On to step 15:
The number 223 fits into 380 1 times, leaving a remainder of 157.
Use 1 as the next digit of our solution. 
Result so far: 18224.19730941
Subtract 223 from 380 to get 157.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1570, and continue the process.

The quotient of the division is 18224.19730941, and the remainder is 1.57e-07.