81330246 ÷ 925 
The aim is to understand the frequency of 925 in 81330246.

Step 1:
The number 925 fits into 8 0 times, leaving a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 925

On to step 2:
If we divide 81 by 925, we get 0 and a remainder of 81.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 81, we get 81.
Include the next digit (3) from the dividend after 81, then repeat: 813 / 925

Advancing to step 3:
925 goes into 813 0 times with a remainder of 813.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 813 leaves us with 813.
Include the next digit (3) from the dividend after 813, then repeat: 8133 / 925

Let's proceed to step 4:
925 goes into 8133 8 times with a remainder of 733.
Put 8 as the next digit of the answer. 
Result so far: 8.0
The remainder is 733 after subtracting 7400 from 8133.
Fetch the next digit (0) from the dividend, attach it to 733 and continue: 7330 / 925

Step 5:
925 goes into 7330 7 times with a remainder of 855.
Record the quotient 7 as the next digit in the result. 
Result so far: 87.0
The remainder is 855 after subtracting 6475 from 7330.
Include the next digit (2) from the dividend after 855, then repeat: 8552 / 925

Advancing to step 6:
8552 divided by 925 is 9 with a remainder of 227.
Use 9 as the next digit of our solution. 
Result so far: 879.0
Deduct 8325 from 8552 and we're left with 227.
Fetch the next digit (4) from the dividend, attach it to 227 and continue: 2274 / 925

Advancing to step 7:
If we divide 2274 by 925, we get 2 and a remainder of 424.
Record the quotient 2 as the next digit in the result. 
Result so far: 8792.0
The remainder is 424 after subtracting 1850 from 2274.
Bring next digit (6) of the dividend behind the 424 and repeat the process: 4246 / 925

Going ahead to step 8:
When dividing 4246 by 925, we get 4 with a remainder of 546.
Record the quotient 4 as the next digit in the result. 
Result so far: 87924.0
Subtract 3700 from 4246 to get 546.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5460, and continue the process.

Let's proceed to step 9:
925 goes into 5460 5 times with a remainder of 835.
Use 5 as the next digit of our solution. 
Result so far: 87924.5
If we take 4625 away from 5460, we end up with 835.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8350, and continue the process.

Step 10:
When dividing 8350 by 925, we get 9 with a remainder of 25.
Use 9 as the next digit of our solution. 
Result so far: 87924.59
Subtract 8325 from 8350 to get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 11:
925 can be fit into 250 0 times, resulting in a remainder of 250.
The next digit of our result is 0. 
Result so far: 87924.59
Subtracting 0 from 250 leaves us with 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Moving on to step 12:
925 goes into 2500 2 times with a remainder of 650.
Use 2 as the next digit of our solution. 
Result so far: 87924.5902
Subtract 1850 from 2500 to get 650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6500, and continue the process.

Moving on to step 13:
If we divide 6500 by 925, we get 7 and a remainder of 25.
Record the quotient 7 as the next digit in the result. 
Result so far: 87924.59027
If we take 6475 away from 6500, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Going ahead to step 14:
925 goes into 250 0 times with a remainder of 250.
Put 0 as the next digit of the answer. 
Result so far: 87924.59027
The remainder is 250 after subtracting 0 from 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Let's proceed to step 15:
2500 divided by 925 is 2 with a remainder of 650.
The next digit of our result is 2. 
Result so far: 87924.5902702
If we take 1850 away from 2500, we end up with 650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6500, and continue the process.

Step 16:
925 can be fit into 6500 7 times, resulting in a remainder of 25.
The next digit of our result is 7. 
Result so far: 87924.59027027
Deduct 6475 from 6500 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

After the division, we end up with 87924.59027027 and a remainder of 2.5e-08.