We look at the division of 53451 by 11 
The aim is to understand the frequency of 11 in 53451.

Let's proceed to step 1:
11 goes into 5 0 times with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Take the next digit (3) from the dividend and append it to 5, then repeat: 53 / 11

Going ahead to step 2:
When dividing 53 by 11, we get 4 with a remainder of 9.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Subtract 44 from 53 to get 9.
Take the next digit (4) from the dividend and append it to 9, then repeat: 94 / 11

Step 3:
When dividing 94 by 11, we get 8 with a remainder of 6.
The next digit of our result is 8. 
Result so far: 48.0
Deduct 88 from 94 and we're left with 6.
Append the next digit (5) from the dividend to 6 and continue with: 65 / 11

Advancing to step 4:
If we divide 65 by 11, we get 5 and a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 485.0
Subtract 55 from 65 to get 10.
Fetch the next digit (1) from the dividend, attach it to 10 and continue: 101 / 11

Going ahead to step 5:
The number 11 fits into 101 9 times, leaving a remainder of 2.
Use 9 as the next digit of our solution. 
Result so far: 4859.0
Subtracting 99 from 101 leaves us 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.

On to step 6:
When dividing 20 by 11, we get 1 with a remainder of 9.
The number 1 becomes the next digit in our result. 
Result so far: 4859.1
Subtracting 11 from 20 leaves us 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.

Moving on to step 7:
The number 11 fits into 90 8 times, leaving a remainder of 2.
Write down 8 as next digit of the result. 
Result so far: 4859.18
If we take 88 away from 90, we end up 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.

Step 8:
The number 11 fits into 20 1 times, leaving a remainder of 9.
Record the quotient 1 as the next digit in the result. 
Result so far: 4859.181
Subtract 11 from 20 to 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.

Step 9:
90 divided by 11 is 8 with a remainder of 2.
Record the quotient 8 as the next digit in the result. 
Result so far: 4859.1818
Subtracting 88 from 90 leaves us 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:
If we divide 20 by 11, we get 1 and a remainder of 9.
The next digit of our result is 1. 
Result so far: 4859.18181
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.

Let's proceed to step 11:
If we divide 90 by 11, we get 8 and a remainder of 2.
Record the quotient 8 as the next digit in the result. 
Result so far: 4859.181818
If we take 88 away from 90, we end up 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 12:
When dividing 20 by 11, we get 1 with a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 4859.1818181
Subtracting 11 from 20 leaves us 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.

Step 13:
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: 4859.18181818
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.

The final result is 4859.18181818 with a remainder of 2e-09.