80302663 ÷ 575 
The aim is to understand the frequency of 575 in 80302663.

Moving on to step 1:
The number 575 fits into 8 0 times, leaving a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Grab the next digit (0) from the dividend, add it to 8, then carry on: 80 / 575

Going ahead to step 2:
80 divided by 575 is 0 with a remainder of 80.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 80 leaves us with 80.
Fetch the next digit (3) from the dividend, attach it to 80 and continue: 803 / 575

Going ahead to step 3:
575 can be fit into 803 1 times, resulting in a remainder of 228.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 575 from 803 and we're left with 228.
Include the next digit (0) from the dividend after 228, then repeat: 2280 / 575

Step 4:
575 can be fit into 2280 3 times, resulting in a remainder of 555.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
Subtract 1725 from 2280 to get 555.
Bring next digit (2) of the dividend behind the 555 and repeat the process: 5552 / 575

Advancing to step 5:
575 can be fit into 5552 9 times, resulting in a remainder of 377.
Put 9 as the next digit of the answer. 
Result so far: 139.0
If we subtract 5175 from 5552, we get 377.
Bring next digit (6) of the dividend behind the 377 and repeat the process: 3776 / 575

Let's proceed to step 6:
575 goes into 3776 6 times with a remainder of 326.
Record the quotient 6 as the next digit in the result. 
Result so far: 1396.0
Deduct 3450 from 3776 and we're left with 326.
Grab the next digit (6) from the dividend, add it to 326, then carry on: 3266 / 575

Moving on to step 7:
575 can be fit into 3266 5 times, resulting in a remainder of 391.
Record the quotient 5 as the next digit in the result. 
Result so far: 13965.0
If we subtract 2875 from 3266, we get 391.
Grab the next digit (3) from the dividend, add it to 391, then carry on: 3913 / 575

On to step 8:
575 can be fit into 3913 6 times, resulting in a remainder of 463.
Use 6 as the next digit of our solution. 
Result so far: 139656.0
Subtract 3450 from 3913 to get 463.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4630, and continue the process.

Let's proceed to step 9:
The number 575 fits into 4630 8 times, leaving a remainder of 30.
Write down 8 as next digit of the result. 
Result so far: 139656.8
Subtract 4600 from 4630 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 10:
If we divide 300 by 575, we get 0 and a remainder of 300.
Use 0 as the next digit of our solution. 
Result so far: 139656.8
If we take 0 away from 300, we end up with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Moving on to step 11:
575 goes into 3000 5 times with a remainder of 125.
Write down 5 as next digit of the result. 
Result so far: 139656.805
Subtract 2875 from 3000 to get 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

Step 12:
The number 575 fits into 1250 2 times, leaving a remainder of 100.
Use 2 as the next digit of our solution. 
Result so far: 139656.8052
The remainder is 100 after subtracting 1150 from 1250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Step 13:
The number 575 fits into 1000 1 times, leaving a remainder of 425.
Write down 1 as next digit of the result. 
Result so far: 139656.80521
Subtract 575 from 1000 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.

On to step 14:
The number 575 fits into 4250 7 times, leaving a remainder of 225.
Record the quotient 7 as the next digit in the result. 
Result so far: 139656.805217
Subtract 4025 from 4250 to get 225.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2250, and continue the process.

Moving on to step 15:
If we divide 2250 by 575, we get 3 and a remainder of 525.
Put 3 as the next digit of the answer. 
Result so far: 139656.8052173
Subtract 1725 from 2250 to get 525.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5250, and continue the process.

Going ahead to step 16:
575 goes into 5250 9 times with a remainder of 75.
Record the quotient 9 as the next digit in the result. 
Result so far: 139656.80521739
Subtracting 5175 from 5250 leaves us with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Our division results in 139656.80521739 with a remaining 7.5e-08.