91734100 ÷ 811 
The aim is to understand the frequency of 811 in 91734100.

On to step 1:
The number 811 fits into 9 0 times, leaving a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Grab the next digit (1) from the dividend, add it to 9, then carry on: 91 / 811

Going ahead to step 2:
91 divided by 811 is 0 with a remainder of 91.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 91, we end up with 91.
Fetch the next digit (7) from the dividend, attach it to 91 and continue: 917 / 811

On to step 3:
811 can be fit into 917 1 times, resulting in a remainder of 106.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 811 from 917 leaves us with 106.
Grab the next digit (3) from the dividend, add it to 106, then carry on: 1063 / 811

Step 4:
811 can be fit into 1063 1 times, resulting in a remainder of 252.
Use 1 as the next digit of our solution. 
Result so far: 11.0
Subtracting 811 from 1063 leaves us with 252.
Append the next digit (4) from the dividend to 252 and continue with: 2524 / 811

Advancing to step 5:
811 goes into 2524 3 times with a remainder of 91.
Record the quotient 3 as the next digit in the result. 
Result so far: 113.0
Deduct 2433 from 2524 and we're left with 91.
Grab the next digit (1) from the dividend, add it to 91, then carry on: 911 / 811

Let's proceed to step 6:
When dividing 911 by 811, we get 1 with a remainder of 100.
Record the quotient 1 as the next digit in the result. 
Result so far: 1131.0
If we take 811 away from 911, we end up with 100.
Bring next digit (0) of the dividend behind the 100 and repeat the process: 1000 / 811

On to step 7:
When dividing 1000 by 811, we get 1 with a remainder of 189.
The number 1 becomes the next digit in our result. 
Result so far: 11311.0
Subtracting 811 from 1000 leaves us with 189.
Take the next digit (0) from the dividend and append it to 189, then repeat: 1890 / 811

On to step 8:
1890 divided by 811 is 2 with a remainder of 268.
Write down 2 as next digit of the result. 
Result so far: 113112.0
If we subtract 1622 from 1890, we get 268.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2680, and continue the process.

Going ahead to step 9:
811 can be fit into 2680 3 times, resulting in a remainder of 247.
Write down 3 as next digit of the result. 
Result so far: 113112.3
Deduct 2433 from 2680 and we're left with 247.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2470, and continue the process.

Going ahead to step 10:
If we divide 2470 by 811, we get 3 and a remainder of 37.
The number 3 becomes the next digit in our result. 
Result so far: 113112.33
If we subtract 2433 from 2470, we get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

After the division, we end up with 113112.33 and a remainder of 0.037.