We're dividing 87774175 by 825 
The aim is to understand the frequency of 825 in 87774175.

Advancing to step 1:
825 can be fit into 8 0 times, resulting in a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Grab the next digit (7) from the dividend, add it to 8, then carry on: 87 / 825

Moving on to step 2:
87 divided by 825 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.
Append the next digit (7) from the dividend to 87 and continue with: 877 / 825

Going ahead to step 3:
When dividing 877 by 825, we get 1 with a remainder of 52.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 825 from 877 and we're left with 52.
Include the next digit (7) from the dividend after 52, then repeat: 527 / 825

Advancing to step 4:
If we divide 527 by 825, we get 0 and a remainder of 527.
Use 0 as the next digit of our solution. 
Result so far: 10.0
If we subtract 0 from 527, we get 527.
Bring next digit (4) of the dividend behind the 527 and repeat the process: 5274 / 825

Moving on to step 5:
When dividing 5274 by 825, we get 6 with a remainder of 324.
The number 6 becomes the next digit in our result. 
Result so far: 106.0
Subtracting 4950 from 5274 leaves us with 324.
Grab the next digit (1) from the dividend, add it to 324, then carry on: 3241 / 825

On to step 6:
825 goes into 3241 3 times with a remainder of 766.
Put 3 as the next digit of the answer. 
Result so far: 1063.0
If we take 2475 away from 3241, we end up with 766.
Bring next digit (7) of the dividend behind the 766 and repeat the process: 7667 / 825

On to step 7:
7667 divided by 825 is 9 with a remainder of 242.
The number 9 becomes the next digit in our result. 
Result so far: 10639.0
The remainder is 242 after subtracting 7425 from 7667.
Include the next digit (5) from the dividend after 242, then repeat: 2425 / 825

On to step 8:
The number 825 fits into 2425 2 times, leaving a remainder of 775.
Record the quotient 2 as the next digit in the result. 
Result so far: 106392.0
Subtract 1650 from 2425 to get 775.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7750, and continue the process.

On to step 9:
825 goes into 7750 9 times with a remainder of 325.
Use 9 as the next digit of our solution. 
Result so far: 106392.9
The remainder is 325 after subtracting 7425 from 7750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3250, and continue the process.

Moving on to step 10:
825 can be fit into 3250 3 times, resulting in a remainder of 775.
Put 3 as the next digit of the answer. 
Result so far: 106392.93
Subtracting 2475 from 3250 leaves us with 775.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7750, and continue the process.

Step 11:
When dividing 7750 by 825, we get 9 with a remainder of 325.
Write down 9 as next digit of the result. 
Result so far: 106392.939
Subtract 7425 from 7750 to get 325.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3250, and continue the process.

Moving on to step 12:
825 can be fit into 3250 3 times, resulting in a remainder of 775.
Record the quotient 3 as the next digit in the result. 
Result so far: 106392.9393
Subtract 2475 from 3250 to get 775.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7750, and continue the process.

Moving on to step 13:
825 goes into 7750 9 times with a remainder of 325.
The next digit of our result is 9. 
Result so far: 106392.93939
Subtracting 7425 from 7750 leaves us with 325.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3250, and continue the process.

Advancing to step 14:
When dividing 3250 by 825, we get 3 with a remainder of 775.
Record the quotient 3 as the next digit in the result. 
Result so far: 106392.939393
Deduct 2475 from 3250 and we're left with 775.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7750, and continue the process.

Going ahead to step 15:
7750 divided by 825 is 9 with a remainder of 325.
The next digit of our result is 9. 
Result so far: 106392.9393939
The remainder is 325 after subtracting 7425 from 7750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3250, and continue the process.

Moving on to step 16:
825 can be fit into 3250 3 times, resulting in a remainder of 775.
Use 3 as the next digit of our solution. 
Result so far: 106392.93939393
The remainder is 775 after subtracting 2475 from 3250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7750, and continue the process.

After the division, we end up with 106392.93939393 and a remainder of 7.75e-07.