86719883 ÷ 223 
The aim is to understand the frequency of 223 in 86719883.

Step 1:
The number 223 fits into 8 0 times, leaving a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Append the next digit (6) from the dividend to 8 and continue with: 86 / 223

Going ahead to step 2:
The number 223 fits into 86 0 times, leaving a remainder of 86.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 86 after subtracting 0 from 86.
Grab the next digit (7) from the dividend, add it to 86, then carry on: 867 / 223

On to step 3:
If we divide 867 by 223, we get 3 and a remainder of 198.
Use 3 as the next digit of our solution. 
Result so far: 3.0
If we take 669 away from 867, we end up with 198.
Take the next digit (1) from the dividend and append it to 198, then repeat: 1981 / 223

Advancing to step 4:
If we divide 1981 by 223, we get 8 and a remainder of 197.
The number 8 becomes the next digit in our result. 
Result so far: 38.0
If we subtract 1784 from 1981, we get 197.
Grab the next digit (9) from the dividend, add it to 197, then carry on: 1979 / 223

Let's proceed to step 5:
If we divide 1979 by 223, we get 8 and a remainder of 195.
Record the quotient 8 as the next digit in the result. 
Result so far: 388.0
Deduct 1784 from 1979 and we're left with 195.
Include the next digit (8) from the dividend after 195, then repeat: 1958 / 223

Let's proceed to step 6:
223 goes into 1958 8 times with a remainder of 174.
Record the quotient 8 as the next digit in the result. 
Result so far: 3888.0
If we take 1784 away from 1958, we end up with 174.
Bring next digit (8) of the dividend behind the 174 and repeat the process: 1748 / 223

On to step 7:
The number 223 fits into 1748 7 times, leaving a remainder of 187.
Use 7 as the next digit of our solution. 
Result so far: 38887.0
Deduct 1561 from 1748 and we're left with 187.
Include the next digit (3) from the dividend after 187, then repeat: 1873 / 223

Going ahead to step 8:
If we divide 1873 by 223, we get 8 and a remainder of 89.
The number 8 becomes the next digit in our result. 
Result so far: 388878.0
Deduct 1784 from 1873 and we're left with 89.
Since there are no more digits in the dividend, we add a zero to the remainder making it 890, and continue the process.

Moving on to step 9:
When dividing 890 by 223, we get 3 with a remainder of 221.
The number 3 becomes the next digit in our result. 
Result so far: 388878.3
If we take 669 away from 890, we end up with 221.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2210, and continue the process.

Moving on to step 10:
When dividing 2210 by 223, we get 9 with a remainder of 203.
Write down 9 as next digit of the result. 
Result so far: 388878.39
If we take 2007 away from 2210, we end up with 203.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2030, and continue the process.

Let's proceed to step 11:
2030 divided by 223 is 9 with a remainder of 23.
Put 9 as the next digit of the answer. 
Result so far: 388878.399
If we subtract 2007 from 2030, we get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

The quotient of the division is 388878.399, and the remainder is 0.0023.