We look at the division of 91100531 by 475 
The aim is to understand the frequency of 475 in 91100531.

Advancing to step 1:
If we divide 9 by 475, we get 0 and a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Include the next digit (1) from the dividend after 9, then repeat: 91 / 475

Step 2:
475 can be fit into 91 0 times, resulting in a remainder of 91.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 91 leaves us with 91.
Include the next digit (1) from the dividend after 91, then repeat: 911 / 475

Let's proceed to step 3:
When dividing 911 by 475, we get 1 with a remainder of 436.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 475 away from 911, we end up with 436.
Take the next digit (0) from the dividend and append it to 436, then repeat: 4360 / 475

Advancing to step 4:
When dividing 4360 by 475, we get 9 with a remainder of 85.
The number 9 becomes the next digit in our result. 
Result so far: 19.0
The remainder is 85 after subtracting 4275 from 4360.
Bring next digit (0) of the dividend behind the 85 and repeat the process: 850 / 475

Moving on to step 5:
The number 475 fits into 850 1 times, leaving a remainder of 375.
Record the quotient 1 as the next digit in the result. 
Result so far: 191.0
Subtract 475 from 850 to get 375.
Bring next digit (5) of the dividend behind the 375 and repeat the process: 3755 / 475

On to step 6:
3755 divided by 475 is 7 with a remainder of 430.
Put 7 as the next digit of the answer. 
Result so far: 1917.0
The remainder is 430 after subtracting 3325 from 3755.
Fetch the next digit (3) from the dividend, attach it to 430 and continue: 4303 / 475

Step 7:
4303 divided by 475 is 9 with a remainder of 28.
Record the quotient 9 as the next digit in the result. 
Result so far: 19179.0
Deduct 4275 from 4303 and we're left with 28.
Append the next digit (1) from the dividend to 28 and continue with: 281 / 475

Let's proceed to step 8:
281 divided by 475 is 0 with a remainder of 281.
The number 0 becomes the next digit in our result. 
Result so far: 191790.0
Subtract 0 from 281 to get 281.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2810, and continue the process.

Let's proceed to step 9:
The number 475 fits into 2810 5 times, leaving a remainder of 435.
The number 5 becomes the next digit in our result. 
Result so far: 191790.5
Subtract 2375 from 2810 to get 435.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4350, and continue the process.

Step 10:
475 can be fit into 4350 9 times, resulting in a remainder of 75.
Use 9 as the next digit of our solution. 
Result so far: 191790.59
If we subtract 4275 from 4350, we get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

On to step 11:
750 divided by 475 is 1 with a remainder of 275.
Record the quotient 1 as the next digit in the result. 
Result so far: 191790.591
If we take 475 away from 750, we end up with 275.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2750, and continue the process.

Let's proceed to step 12:
When dividing 2750 by 475, we get 5 with a remainder of 375.
The number 5 becomes the next digit in our result. 
Result so far: 191790.5915
Deduct 2375 from 2750 and we're left with 375.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3750, and continue the process.

Moving on to step 13:
When dividing 3750 by 475, we get 7 with a remainder of 425.
Record the quotient 7 as the next digit in the result. 
Result so far: 191790.59157
Subtract 3325 from 3750 to get 425.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4250, and continue the process.

Advancing to step 14:
The number 475 fits into 4250 8 times, leaving a remainder of 450.
The number 8 becomes the next digit in our result. 
Result so far: 191790.591578
Subtract 3800 from 4250 to get 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

Step 15:
The number 475 fits into 4500 9 times, leaving a remainder of 225.
The next digit of our result is 9. 
Result so far: 191790.5915789
Deduct 4275 from 4500 and we're left with 225.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2250, and continue the process.

On to step 16:
475 can be fit into 2250 4 times, resulting in a remainder of 350.
Use 4 as the next digit of our solution. 
Result so far: 191790.59157894
Deduct 1900 from 2250 and we're left with 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

The quotient of the division is 191790.59157894, and the remainder is 3.5e-07.