We look at the division of 86486228 by 218 
The aim is to understand the frequency of 218 in 86486228.

Advancing to step 1:
218 goes into 8 0 times with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Include the next digit (6) from the dividend after 8, then repeat: 86 / 218

Let's proceed to step 2:
The number 218 fits into 86 0 times, leaving a remainder of 86.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 86 leaves us with 86.
Bring next digit (4) of the dividend behind the 86 and repeat the process: 864 / 218

Going ahead to step 3:
If we divide 864 by 218, we get 3 and a remainder of 210.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
The remainder is 210 after subtracting 654 from 864.
Include the next digit (8) from the dividend after 210, then repeat: 2108 / 218

Step 4:
2108 divided by 218 is 9 with a remainder of 146.
Write down 9 as next digit of the result. 
Result so far: 39.0
Subtracting 1962 from 2108 leaves us with 146.
Take the next digit (6) from the dividend and append it to 146, then repeat: 1466 / 218

Step 5:
218 goes into 1466 6 times with a remainder of 158.
The number 6 becomes the next digit in our result. 
Result so far: 396.0
If we take 1308 away from 1466, we end up with 158.
Take the next digit (2) from the dividend and append it to 158, then repeat: 1582 / 218

Moving on to step 6:
1582 divided by 218 is 7 with a remainder of 56.
The next digit of our result is 7. 
Result so far: 3967.0
The remainder is 56 after subtracting 1526 from 1582.
Grab the next digit (2) from the dividend, add it to 56, then carry on: 562 / 218

Going ahead to step 7:
If we divide 562 by 218, we get 2 and a remainder of 126.
Put 2 as the next digit of the answer. 
Result so far: 39672.0
If we take 436 away from 562, we end up with 126.
Fetch the next digit (8) from the dividend, attach it to 126 and continue: 1268 / 218

Advancing to step 8:
If we divide 1268 by 218, we get 5 and a remainder of 178.
Use 5 as the next digit of our solution. 
Result so far: 396725.0
Deduct 1090 from 1268 and we're left with 178.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1780, and continue the process.

Going ahead to step 9:
218 can be fit into 1780 8 times, resulting in a remainder of 36.
Put 8 as the next digit of the answer. 
Result so far: 396725.8
If we subtract 1744 from 1780, we get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Step 10:
360 divided by 218 is 1 with a remainder of 142.
Put 1 as the next digit of the answer. 
Result so far: 396725.81
Deduct 218 from 360 and we're left with 142.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1420, and continue the process.

Moving on to step 11:
1420 divided by 218 is 6 with a remainder of 112.
Write down 6 as next digit of the result. 
Result so far: 396725.816
Subtract 1308 from 1420 to get 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Going ahead to step 12:
218 can be fit into 1120 5 times, resulting in a remainder of 30.
Use 5 as the next digit of our solution. 
Result so far: 396725.8165
Subtracting 1090 from 1120 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 13:
When dividing 300 by 218, we get 1 with a remainder of 82.
Record the quotient 1 as the next digit in the result. 
Result so far: 396725.81651
The remainder is 82 after subtracting 218 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Going ahead to step 14:
218 goes into 820 3 times with a remainder of 166.
The number 3 becomes the next digit in our result. 
Result so far: 396725.816513
If we subtract 654 from 820, we get 166.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1660, and continue the process.

Going ahead to step 15:
The number 218 fits into 1660 7 times, leaving a remainder of 134.
Put 7 as the next digit of the answer. 
Result so far: 396725.8165137
Subtracting 1526 from 1660 leaves us with 134.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1340, and continue the process.

Let's proceed to step 16:
When dividing 1340 by 218, we get 6 with a remainder of 32.
Put 6 as the next digit of the answer. 
Result so far: 396725.81651376
Subtracting 1308 from 1340 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Our division results in 396725.81651376 with a remaining 3.2e-08.