We're dividing 8745521 by 576 
The aim is to understand the frequency of 576 in 8745521.

Going ahead to step 1:
576 can be fit into 8 0 times, resulting in a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Grab the next digit (7) from the dividend, add it to 8, then carry on: 87 / 576

Step 2:
87 divided by 576 is 0 with a remainder of 87.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 87, we end up with 87.
Include the next digit (4) from the dividend after 87, then repeat: 874 / 576

Let's proceed to step 3:
If we divide 874 by 576, we get 1 and a remainder of 298.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 298 after subtracting 576 from 874.
Grab the next digit (5) from the dividend, add it to 298, then carry on: 2985 / 576

Advancing to step 4:
576 goes into 2985 5 times with a remainder of 105.
Record the quotient 5 as the next digit in the result. 
Result so far: 15.0
Subtracting 2880 from 2985 leaves us with 105.
Take the next digit (5) from the dividend and append it to 105, then repeat: 1055 / 576

Let's proceed to step 5:
When dividing 1055 by 576, we get 1 with a remainder of 479.
Write down 1 as next digit of the result. 
Result so far: 151.0
Subtract 576 from 1055 to get 479.
Append the next digit (2) from the dividend to 479 and continue with: 4792 / 576

Going ahead to step 6:
The number 576 fits into 4792 8 times, leaving a remainder of 184.
The next digit of our result is 8. 
Result so far: 1518.0
Deduct 4608 from 4792 and we're left with 184.
Bring next digit (1) of the dividend behind the 184 and repeat the process: 1841 / 576

Let's proceed to step 7:
1841 divided by 576 is 3 with a remainder of 113.
The next digit of our result is 3. 
Result so far: 15183.0
Subtracting 1728 from 1841 leaves us with 113.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1130, and continue the process.

Let's proceed to step 8:
When dividing 1130 by 576, we get 1 with a remainder of 554.
The next digit of our result is 1. 
Result so far: 15183.1
The remainder is 554 after subtracting 576 from 1130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5540, and continue the process.

Advancing to step 9:
The number 576 fits into 5540 9 times, leaving a remainder of 356.
Write down 9 as next digit of the result. 
Result so far: 15183.19
If we take 5184 away from 5540, we end up with 356.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3560, and continue the process.

Let's proceed to step 10:
576 can be fit into 3560 6 times, resulting in a remainder of 104.
Put 6 as the next digit of the answer. 
Result so far: 15183.196
Subtracting 3456 from 3560 leaves us with 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Let's proceed to step 11:
1040 divided by 576 is 1 with a remainder of 464.
The number 1 becomes the next digit in our result. 
Result so far: 15183.1961
Subtract 576 from 1040 to get 464.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4640, and continue the process.

Moving on to step 12:
4640 divided by 576 is 8 with a remainder of 32.
Put 8 as the next digit of the answer. 
Result so far: 15183.19618
Deduct 4608 from 4640 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Going ahead to step 13:
When dividing 320 by 576, we get 0 with a remainder of 320.
The next digit of our result is 0. 
Result so far: 15183.19618
Subtract 0 from 320 to get 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Step 14:
576 goes into 3200 5 times with a remainder of 320.
Use 5 as the next digit of our solution. 
Result so far: 15183.1961805
The remainder is 320 after subtracting 2880 from 3200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

On to step 15:
576 goes into 3200 5 times with a remainder of 320.
Write down 5 as next digit of the result. 
Result so far: 15183.19618055
Subtracting 2880 from 3200 leaves us with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

After the division, we end up with 15183.19618055 and a remainder of 3.2e-07.