We look at the division of 433986 by 11 
The aim is to understand the frequency of 11 in 433986.

On to step 1:
11 goes into 4 0 times with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Bring next digit (3) of the dividend behind the 4 and repeat the process: 43 / 11

Moving on to step 2:
43 divided by 11 is 3 with a remainder of 10.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtracting 33 from 43 leaves us with 10.
Append the next digit (3) from the dividend to 10 and continue with: 103 / 11

Step 3:
11 can be fit into 103 9 times, resulting in a remainder of 4.
Put 9 as the next digit of the answer. 
Result so far: 39.0
Deduct 99 from 103 and we're left with 4.
Take the next digit (9) from the dividend and append it to 4, then repeat: 49 / 11

Let's proceed to step 4:
11 can be fit into 49 4 times, resulting in a remainder of 5.
The next digit of our result is 4. 
Result so far: 394.0
Deduct 44 from 49 and we're left with 5.
Bring next digit (8) of the dividend behind the 5 and repeat the process: 58 / 11

On to step 5:
If we divide 58 by 11, we get 5 and a remainder of 3.
The next digit of our result is 5. 
Result so far: 3945.0
Deduct 55 from 58 and we're left with 3.
Append the next digit (6) from the dividend to 3 and continue with: 36 / 11

Moving on to step 6:
36 divided by 11 is 3 with a remainder of 3.
The number 3 becomes the next digit in our result. 
Result so far: 39453.0
The remainder is 3 after subtracting 33 from 36.
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 7:
The number 11 fits into 30 2 times, leaving a remainder of 8.
Put 2 as the next digit of the answer. 
Result so far: 39453.2
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.

Step 8:
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: 39453.27
If we take 77 away from 80, we end up 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 9:
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: 39453.272
If we take 22 away from 30, we end up 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.

Let's proceed to step 10:
11 can be fit into 80 7 times, resulting in a remainder of 3.
The next digit of our result is 7. 
Result so far: 39453.2727
The remainder is 3 after subtracting 77 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 11:
11 can be fit into 30 2 times, resulting in a remainder of 8.
The number 2 becomes the next digit in our result. 
Result so far: 39453.27272
If we subtract 22 from 30, we 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.

Moving on to step 12:
When dividing 80 by 11, we get 7 with a remainder of 3.
Record the quotient 7 as the next digit in the result. 
Result so far: 39453.272727
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.

Advancing to step 13:
The number 11 fits into 30 2 times, leaving a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 39453.2727272
If we take 22 away from 30, we end up 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 14:
If we divide 80 by 11, we get 7 and a remainder of 3.
Write down 7 as next digit of the result. 
Result so far: 39453.27272727
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 outcome is 39453.27272727, with a leftover of 3e-09.