75519225 ÷ 575 
The aim is to understand the frequency of 575 in 75519225.

On to step 1:
575 can be fit into 7 0 times, resulting in a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Include the next digit (5) from the dividend after 7, then repeat: 75 / 575

Advancing to step 2:
575 goes into 75 0 times with a remainder of 75.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 75, we end up with 75.
Take the next digit (5) from the dividend and append it to 75, then repeat: 755 / 575

Going ahead to step 3:
When dividing 755 by 575, we get 1 with a remainder of 180.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 575 from 755, we get 180.
Append the next digit (1) from the dividend to 180 and continue with: 1801 / 575

Going ahead to step 4:
When dividing 1801 by 575, we get 3 with a remainder of 76.
Use 3 as the next digit of our solution. 
Result so far: 13.0
If we subtract 1725 from 1801, we get 76.
Grab the next digit (9) from the dividend, add it to 76, then carry on: 769 / 575

On to step 5:
If we divide 769 by 575, we get 1 and a remainder of 194.
Put 1 as the next digit of the answer. 
Result so far: 131.0
Subtract 575 from 769 to get 194.
Grab the next digit (2) from the dividend, add it to 194, then carry on: 1942 / 575

Going ahead to step 6:
575 can be fit into 1942 3 times, resulting in a remainder of 217.
Write down 3 as next digit of the result. 
Result so far: 1313.0
If we take 1725 away from 1942, we end up with 217.
Grab the next digit (2) from the dividend, add it to 217, then carry on: 2172 / 575

Let's proceed to step 7:
The number 575 fits into 2172 3 times, leaving a remainder of 447.
Use 3 as the next digit of our solution. 
Result so far: 13133.0
Subtracting 1725 from 2172 leaves us with 447.
Append the next digit (5) from the dividend to 447 and continue with: 4475 / 575

Step 8:
575 can be fit into 4475 7 times, resulting in a remainder of 450.
The number 7 becomes the next digit in our result. 
Result so far: 131337.0
If we take 4025 away from 4475, we end up with 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

Going ahead to step 9:
575 can be fit into 4500 7 times, resulting in a remainder of 475.
Write down 7 as next digit of the result. 
Result so far: 131337.7
If we take 4025 away from 4500, we end up with 475.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4750, and continue the process.

Going ahead to step 10:
If we divide 4750 by 575, we get 8 and a remainder of 150.
Put 8 as the next digit of the answer. 
Result so far: 131337.78
If we subtract 4600 from 4750, we get 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Going ahead to step 11:
575 goes into 1500 2 times with a remainder of 350.
Record the quotient 2 as the next digit in the result. 
Result so far: 131337.782
Deduct 1150 from 1500 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.

Advancing to step 12:
If we divide 3500 by 575, we get 6 and a remainder of 50.
The number 6 becomes the next digit in our result. 
Result so far: 131337.7826
Subtract 3450 from 3500 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 13:
575 goes into 500 0 times with a remainder of 500.
The next digit of our result is 0. 
Result so far: 131337.7826
Subtracting 0 from 500 leaves us with 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

Step 14:
5000 divided by 575 is 8 with a remainder of 400.
The number 8 becomes the next digit in our result. 
Result so far: 131337.782608
The remainder is 400 after subtracting 4600 from 5000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Going ahead to step 15:
4000 divided by 575 is 6 with a remainder of 550.
The number 6 becomes the next digit in our result. 
Result so far: 131337.7826086
Deduct 3450 from 4000 and we're left with 550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5500, and continue the process.

Step 16:
The number 575 fits into 5500 9 times, leaving a remainder of 325.
Record the quotient 9 as the next digit in the result. 
Result so far: 131337.78260869
The remainder is 325 after subtracting 5175 from 5500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3250, and continue the process.

The quotient of the division is 131337.78260869, and the remainder is 3.25e-07.