We look at the division of 631909 by 11 
The aim is to understand the frequency of 11 in 631909.

Moving on to step 1:
11 can be fit into 6 0 times, resulting in a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Take the next digit (3) from the dividend and append it to 6, then repeat: 63 / 11

Going ahead to step 2:
When dividing 63 by 11, we get 5 with a remainder of 8.
Write down 5 as next digit of the result. 
Result so far: 5.0
Subtracting 55 from 63 leaves us with 8.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 11

Going ahead to step 3:
81 divided by 11 is 7 with a remainder of 4.
The next digit of our result is 7. 
Result so far: 57.0
The remainder is 4 after subtracting 77 from 81.
Append the next digit (9) from the dividend to 4 and continue with: 49 / 11

Step 4:
If we divide 49 by 11, we get 4 and a remainder of 5.
Put 4 as the next digit of the answer. 
Result so far: 574.0
If we take 44 away from 49, we end up with 5.
Fetch the next digit (0) from the dividend, attach it to 5 and continue: 50 / 11

On to step 5:
11 can be fit into 50 4 times, resulting in a remainder of 6.
The next digit of our result is 4. 
Result so far: 5744.0
If we take 44 away from 50, we end up with 6.
Fetch the next digit (9) from the dividend, attach it to 6 and continue: 69 / 11

Let's proceed to step 6:
When dividing 69 by 11, we get 6 with a remainder of 3.
The next digit of our result is 6. 
Result so far: 57446.0
Subtracting 66 from 69 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 7:
11 can be fit into 30 2 times, resulting in a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 57446.2
The remainder is 8 after subtracting 22 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 8:
If we divide 80 by 11, we get 7 and a remainder of 3.
The number 7 becomes the next digit in our result. 
Result so far: 57446.27
Subtract 77 from 80 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 9:
11 goes into 30 2 times with a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 57446.272
Subtract 22 from 30 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 10:
80 divided by 11 is 7 with a remainder of 3.
The next digit of our result is 7. 
Result so far: 57446.2727
Deduct 77 from 80 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 11:
30 divided by 11 is 2 with a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 57446.27272
Deduct 22 from 30 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 12:
If we divide 80 by 11, we get 7 and a remainder of 3.
Use 7 as the next digit of our solution. 
Result so far: 57446.272727
Subtracting 77 from 80 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 13:
When dividing 30 by 11, we get 2 with a remainder of 8.
The next digit of our result is 2. 
Result so far: 57446.2727272
Deduct 22 from 30 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 14:
The number 11 fits into 80 7 times, leaving a remainder of 3.
Write down 7 as next digit of the result. 
Result so far: 57446.27272727
Subtract 77 from 80 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

The final result is 57446.27272727 with a remainder of 3e-09.