We look at the division of 897607 by 11 
The aim is to understand the frequency of 11 in 897607.

On to step 1:
If we divide 8 by 11, we get 0 and a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Grab the next digit (9) from the dividend, add it to 8, then carry on: 89 / 11

Advancing to step 2:
The number 11 fits into 89 8 times, leaving a remainder of 1.
Use 8 as the next digit of our solution. 
Result so far: 8.0
If we take 88 away from 89, we end up with 1.
Grab the next digit (7) from the dividend, add it to 1, then carry on: 17 / 11

On to step 3:
17 divided by 11 is 1 with a remainder of 6.
Write down 1 as next digit of the result. 
Result so far: 81.0
Subtracting 11 from 17 leaves us with 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 11

Moving on to step 4:
When dividing 66 by 11, we get 6 with a remainder of 0.
The next digit of our result is 6. 
Result so far: 816.0
The remainder is 0 after subtracting 66 from 66.
Fetch the next digit (0) from the dividend, attach it to 0 and continue: 0 / 11

Moving on to step 5:
If we divide 0 by 11, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 8160.0
Deduct 0 from 0 and we're left with 0.
Take the next digit (7) from the dividend and append it to 0, then repeat: 7 / 11

On to step 6:
7 divided by 11 is 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 81600.0
The remainder is 7 after subtracting 0 from 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 7:
11 goes into 70 6 times with a remainder of 4.
The next digit of our result is 6. 
Result so far: 81600.6
Subtracting 66 from 70 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 8:
When dividing 40 by 11, we get 3 with a remainder of 7.
Put 3 as the next digit of the answer. 
Result so far: 81600.63
Deduct 33 from 40 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 9:
When dividing 70 by 11, we get 6 with a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 81600.636
The remainder is 4 after subtracting 66 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 10:
40 divided by 11 is 3 with a remainder of 7.
Put 3 as the next digit of the answer. 
Result so far: 81600.6363
If we take 33 away from 40, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 11:
70 divided by 11 is 6 with a remainder of 4.
Put 6 as the next digit of the answer. 
Result so far: 81600.63636
If we subtract 66 from 70, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 12:
11 goes into 40 3 times with a remainder of 7.
The number 3 becomes the next digit in our result. 
Result so far: 81600.636363
Deduct 33 from 40 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Step 13:
The number 11 fits into 70 6 times, leaving a remainder of 4.
Record the quotient 6 as the next digit in the result. 
Result so far: 81600.6363636
If we subtract 66 from 70, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 14:
The number 11 fits into 40 3 times, leaving a remainder of 7.
The next digit of our result is 3. 
Result so far: 81600.63636363
If we take 33 away from 40, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

The final outcome is 81600.63636363, with a leftover of 7e-09.