We divide 660575 by 11
The aim is to understand the frequency of 11 in 660575.

Step 1:
6 divided by 11 is 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 11

Step 2:
66 divided by 11 is 6 with a remainder of 0.
Use 6 as the next digit of our solution. 
Result so far: 6.0
Deduct 66 from 66 and we're left with 0.
Fetch the next digit (0) from the dividend, attach it to 0 and continue: 0 / 11

Going ahead to step 3:
11 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 60.0
The remainder is 0 after subtracting 0 from 0.
Grab the next digit (5) from the dividend, add it to 0, then carry on: 5 / 11

Advancing to step 4:
The number 11 fits into 5 0 times, leaving a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 600.0
If we subtract 0 from 5, we get 5.
Append the next digit (7) from the dividend to 5 and continue with: 57 / 11

Step 5:
When dividing 57 by 11, we get 5 with a remainder of 2.
Use 5 as the next digit of our solution. 
Result so far: 6005.0
Deduct 55 from 57 and we're left with 2.
Append the next digit (5) from the dividend to 2 and continue with: 25 / 11

Step 6:
If we divide 25 by 11, we get 2 and a remainder of 3.
Put 2 as the next digit of the answer. 
Result so far: 60052.0
Subtract 22 from 25 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.

Let's proceed to step 7:
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: 60052.2
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 8:
80 divided by 11 is 7 with a remainder of 3.
Record the quotient 7 as the next digit in the result. 
Result so far: 60052.27
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.

Advancing to step 9:
30 divided by 11 is 2 with a remainder of 8.
Put 2 as the next digit of the answer. 
Result so far: 60052.272
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.

Going ahead to step 10:
11 goes into 80 7 times with a remainder of 3.
Record the quotient 7 as the next digit in the result. 
Result so far: 60052.2727
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.

Step 11:
When dividing 30 by 11, we get 2 with a remainder of 8.
Use 2 as the next digit of our solution. 
Result so far: 60052.27272
Subtracting 22 from 30 leaves us 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:
The number 11 fits into 80 7 times, leaving a remainder of 3.
Put 7 as the next digit of the answer. 
Result so far: 60052.272727
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.

On to step 13:
11 goes into 30 2 times with a remainder of 8.
Use 2 as the next digit of our solution. 
Result so far: 60052.2727272
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.

Step 14:
The number 11 fits into 80 7 times, leaving a remainder of 3.
The next digit of our result is 7. 
Result so far: 60052.27272727
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.

The quotient of the division is 60052.27272727, and the remainder is 3e-09.