391631 ÷ 11 
The aim is to understand the frequency of 11 in 391631.

Let's proceed to step 1:
11 can be fit into 3 0 times, resulting in a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 11

Advancing to step 2:
When dividing 39 by 11, we get 3 with a remainder of 6.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we take 33 away from 39, we end up with 6.
Fetch the next digit (1) from the dividend, attach it to 6 and continue: 61 / 11

On to step 3:
11 goes into 61 5 times with a remainder of 6.
Write down 5 as next digit of the result. 
Result so far: 35.0
Subtract 55 from 61 to get 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 11

Moving on to step 4:
When dividing 66 by 11, we get 6 with a remainder of 0.
Record the quotient 6 as the next digit in the result. 
Result so far: 356.0
If we take 66 away from 66, we end up with 0.
Take the next digit (3) from the dividend and append it to 0, then repeat: 3 / 11

Going ahead to step 5:
11 goes into 3 0 times with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 3560.0
If we subtract 0 from 3, we get 3.
Take the next digit (1) from the dividend and append it to 3, then repeat: 31 / 11

Let's proceed to step 6:
11 can be fit into 31 2 times, resulting in a remainder of 9.
The number 2 becomes the next digit in our result. 
Result so far: 35602.0
The remainder is 9 after subtracting 22 from 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Let's proceed to step 7:
11 goes into 90 8 times with a remainder of 2.
Record the quotient 8 as the next digit in the result. 
Result so far: 35602.8
The remainder is 2 after subtracting 88 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 8:
11 can be fit into 20 1 times, resulting in a remainder of 9.
The number 1 becomes the next digit in our result. 
Result so far: 35602.81
If we take 11 away from 20, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Going ahead to step 9:
The number 11 fits into 90 8 times, leaving a remainder of 2.
Use 8 as the next digit of our solution. 
Result so far: 35602.818
Deduct 88 from 90 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 10:
20 divided by 11 is 1 with a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 35602.8181
If we subtract 11 from 20, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 11:
11 goes into 90 8 times with a remainder of 2.
Put 8 as the next digit of the answer. 
Result so far: 35602.81818
Subtract 88 from 90 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 12:
11 can be fit into 20 1 times, resulting in a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 35602.818181
If we take 11 away from 20, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Advancing to step 13:
11 can be fit into 90 8 times, resulting in a remainder of 2.
The next digit of our result is 8. 
Result so far: 35602.8181818
Deduct 88 from 90 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 14:
If we divide 20 by 11, we get 1 and a remainder of 9.
Record the quotient 1 as the next digit in the result. 
Result so far: 35602.81818181
If we take 11 away from 20, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

The quotient of the division is 35602.81818181, and the remainder is 9e-09.