642651 ÷ 11 
The aim is to understand the frequency of 11 in 642651.

Going ahead to step 1:
11 can be fit into 6 0 times, resulting in a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 11

On to step 2:
If we divide 64 by 11, we get 5 and a remainder of 9.
Use 5 as the next digit of our solution. 
Result so far: 5.0
Subtracting 55 from 64 leaves us with 9.
Take the next digit (2) from the dividend and append it to 9, then repeat: 92 / 11

Moving on to step 3:
11 can be fit into 92 8 times, resulting in a remainder of 4.
Record the quotient 8 as the next digit in the result. 
Result so far: 58.0
If we take 88 away from 92, we end up with 4.
Grab the next digit (6) from the dividend, add it to 4, then carry on: 46 / 11

Advancing to step 4:
11 can be fit into 46 4 times, resulting in a remainder of 2.
The number 4 becomes the next digit in our result. 
Result so far: 584.0
If we take 44 away from 46, we end up with 2.
Grab the next digit (5) from the dividend, add it to 2, then carry on: 25 / 11

Let's proceed to step 5:
11 can be fit into 25 2 times, resulting in a remainder of 3.
Use 2 as the next digit of our solution. 
Result so far: 5842.0
Subtract 22 from 25 to get 3.
Take the next digit (1) from the dividend and append it to 3, then repeat: 31 / 11

Step 6:
If we divide 31 by 11, we get 2 and a remainder of 9.
Put 2 as the next digit of the answer. 
Result so far: 58422.0
Deduct 22 from 31 and we're left 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.

On to step 7:
The number 11 fits into 90 8 times, leaving a remainder of 2.
Record the quotient 8 as the next digit in the result. 
Result so far: 58422.8
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.

Let's proceed to step 8:
11 goes into 20 1 times with a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 58422.81
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.

On to step 9:
When dividing 90 by 11, we get 8 with a remainder of 2.
The next digit of our result is 8. 
Result so far: 58422.818
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.

Going ahead to step 10:
11 goes into 20 1 times with a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 58422.8181
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.

On to step 11:
When dividing 90 by 11, we get 8 with a remainder of 2.
Record the quotient 8 as the next digit in the result. 
Result so far: 58422.81818
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 12:
20 divided by 11 is 1 with a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 58422.818181
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.

Let's proceed to step 13:
If we divide 90 by 11, we get 8 and a remainder of 2.
Use 8 as the next digit of our solution. 
Result so far: 58422.8181818
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.

On to step 14:
When dividing 20 by 11, we get 1 with a remainder of 9.
Write down 1 as next digit of the result. 
Result so far: 58422.81818181
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.

The final result is 58422.81818181 with a remainder of 9e-09.