We look at the division of 8968591 by 811 
The aim is to understand the frequency of 811 in 8968591.

On to step 1:
811 goes into 8 0 times with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Bring next digit (9) of the dividend behind the 8 and repeat the process: 89 / 811

Going ahead to step 2:
89 divided by 811 is 0 with a remainder of 89.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 89 leaves us with 89.
Append the next digit (6) from the dividend to 89 and continue with: 896 / 811

On to step 3:
811 goes into 896 1 times with a remainder of 85.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 811 from 896 to get 85.
Fetch the next digit (8) from the dividend, attach it to 85 and continue: 858 / 811

Moving on to step 4:
When dividing 858 by 811, we get 1 with a remainder of 47.
Put 1 as the next digit of the answer. 
Result so far: 11.0
The remainder is 47 after subtracting 811 from 858.
Grab the next digit (5) from the dividend, add it to 47, then carry on: 475 / 811

Moving on to step 5:
If we divide 475 by 811, we get 0 and a remainder of 475.
Record the quotient 0 as the next digit in the result. 
Result so far: 110.0
If we subtract 0 from 475, we get 475.
Fetch the next digit (9) from the dividend, attach it to 475 and continue: 4759 / 811

Moving on to step 6:
If we divide 4759 by 811, we get 5 and a remainder of 704.
Use 5 as the next digit of our solution. 
Result so far: 1105.0
The remainder is 704 after subtracting 4055 from 4759.
Fetch the next digit (1) from the dividend, attach it to 704 and continue: 7041 / 811

Moving on to step 7:
811 can be fit into 7041 8 times, resulting in a remainder of 553.
Write down 8 as next digit of the result. 
Result so far: 11058.0
Subtracting 6488 from 7041 leaves us with 553.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5530, and continue the process.

Going ahead to step 8:
811 can be fit into 5530 6 times, resulting in a remainder of 664.
Put 6 as the next digit of the answer. 
Result so far: 11058.6
If we take 4866 away from 5530, we end up with 664.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6640, and continue the process.

Moving on to step 9:
811 goes into 6640 8 times with a remainder of 152.
Use 8 as the next digit of our solution. 
Result so far: 11058.68
Subtract 6488 from 6640 to get 152.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

Let's proceed to step 10:
When dividing 1520 by 811, we get 1 with a remainder of 709.
Put 1 as the next digit of the answer. 
Result so far: 11058.681
If we subtract 811 from 1520, we get 709.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7090, and continue the process.

Step 11:
7090 divided by 811 is 8 with a remainder of 602.
Put 8 as the next digit of the answer. 
Result so far: 11058.6818
If we take 6488 away from 7090, we end up with 602.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6020, and continue the process.

Going ahead to step 12:
When dividing 6020 by 811, we get 7 with a remainder of 343.
Use 7 as the next digit of our solution. 
Result so far: 11058.68187
If we subtract 5677 from 6020, we get 343.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3430, and continue the process.

Let's proceed to step 13:
If we divide 3430 by 811, we get 4 and a remainder of 186.
Write down 4 as next digit of the result. 
Result so far: 11058.681874
If we take 3244 away from 3430, we end up with 186.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1860, and continue the process.

Step 14:
1860 divided by 811 is 2 with a remainder of 238.
Use 2 as the next digit of our solution. 
Result so far: 11058.6818742
Subtract 1622 from 1860 to get 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

Advancing to step 15:
2380 divided by 811 is 2 with a remainder of 758.
Record the quotient 2 as the next digit in the result. 
Result so far: 11058.68187422
Deduct 1622 from 2380 and we're left with 758.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7580, and continue the process.

The final outcome is 11058.68187422, with a leftover of 7.58e-07.