We look at the division of 18712 by 11 
The aim is to understand the frequency of 11 in 18712.

Advancing to step 1:
1 divided by 11 is 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Bring next digit (8) of the dividend behind the 1 and repeat the process: 18 / 11

Step 2:
11 can be fit into 18 1 times, resulting in a remainder of 7.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 11 from 18 to get 7.
Grab the next digit (7) from the dividend, add it to 7, then carry on: 77 / 11

On to step 3:
77 divided by 11 is 7 with a remainder of 0.
Use 7 as the next digit of our solution. 
Result so far: 17.0
If we subtract 77 from 77, we get 0.
Take the next digit (1) from the dividend and append it to 0, then repeat: 1 / 11

Going ahead to step 4:
11 goes into 1 0 times with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 170.0
If we take 0 away from 1, we end up with 1.
Fetch the next digit (2) from the dividend, attach it to 1 and continue: 12 / 11

Moving on to step 5:
12 divided by 11 is 1 with a remainder of 1.
Write down 1 as next digit of the result. 
Result so far: 1701.0
Deduct 11 from 12 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 6:
If we divide 10 by 11, we get 0 and a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 1701.0
If we take 0 away from 10, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 7:
11 can be fit into 100 9 times, resulting in a remainder of 1.
Write down 9 as next digit of the result. 
Result so far: 1701.09
If we subtract 99 from 100, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 8:
10 divided by 11 is 0 with a remainder of 10.
The next digit of our result is 0. 
Result so far: 1701.09
Deduct 0 from 10 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 9:
100 divided by 11 is 9 with a remainder of 1.
Write down 9 as next digit of the result. 
Result so far: 1701.0909
The remainder is 1 after subtracting 99 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 10:
The number 11 fits into 10 0 times, leaving a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 1701.0909
Subtracting 0 from 10 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 11:
If we divide 100 by 11, we get 9 and a remainder of 1.
Put 9 as the next digit of the answer. 
Result so far: 1701.090909
Subtracting 99 from 100 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 12:
When dividing 10 by 11, we get 0 with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 1701.090909
If we take 0 away from 10, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 13:
If we divide 100 by 11, we get 9 and a remainder of 1.
Record the quotient 9 as the next digit in the result. 
Result so far: 1701.09090909
The remainder is 1 after subtracting 99 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Our division results in 1701.09090909 with a remaining 1e-09.