Let's divide 42752144 by 815
The aim is to understand the frequency of 815 in 42752144.

Advancing to step 1:
815 can be fit into 4 0 times, resulting in a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Grab the next digit (2) from the dividend, add it to 4, then carry on: 42 / 815

On to step 2:
815 goes into 42 0 times with a remainder of 42.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 42 leaves us with 42.
Include the next digit (7) from the dividend after 42, then repeat: 427 / 815

Step 3:
The number 815 fits into 427 0 times, leaving a remainder of 427.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 427 to get 427.
Fetch the next digit (5) from the dividend, attach it to 427 and continue: 4275 / 815

Let's proceed to step 4:
The number 815 fits into 4275 5 times, leaving a remainder of 200.
Use 5 as the next digit of our solution. 
Result so far: 5.0
Deduct 4075 from 4275 and we're left with 200.
Append the next digit (2) from the dividend to 200 and continue with: 2002 / 815

On to step 5:
If we divide 2002 by 815, we get 2 and a remainder of 372.
The number 2 becomes the next digit in our result. 
Result so far: 52.0
If we subtract 1630 from 2002, we get 372.
Bring next digit (1) of the dividend behind the 372 and repeat the process: 3721 / 815

On to step 6:
When dividing 3721 by 815, we get 4 with a remainder of 461.
Use 4 as the next digit of our solution. 
Result so far: 524.0
The remainder is 461 after subtracting 3260 from 3721.
Include the next digit (4) from the dividend after 461, then repeat: 4614 / 815

Advancing to step 7:
If we divide 4614 by 815, we get 5 and a remainder of 539.
The next digit of our result is 5. 
Result so far: 5245.0
Subtracting 4075 from 4614 leaves us with 539.
Bring next digit (4) of the dividend behind the 539 and repeat the process: 5394 / 815

Going ahead to step 8:
815 goes into 5394 6 times with a remainder of 504.
Use 6 as the next digit of our solution. 
Result so far: 52456.0
If we subtract 4890 from 5394, we get 504.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5040, and continue the process.

Going ahead to step 9:
When dividing 5040 by 815, we get 6 with a remainder of 150.
Write down 6 as next digit of the result. 
Result so far: 52456.6
Deduct 4890 from 5040 and we're left with 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 10:
The number 815 fits into 1500 1 times, leaving a remainder of 685.
The number 1 becomes the next digit in our result. 
Result so far: 52456.61
The remainder is 685 after subtracting 815 from 1500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6850, and continue the process.

Step 11:
When dividing 6850 by 815, we get 8 with a remainder of 330.
Put 8 as the next digit of the answer. 
Result so far: 52456.618
Subtract 6520 from 6850 to get 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

On to step 12:
3300 divided by 815 is 4 with a remainder of 40.
Put 4 as the next digit of the answer. 
Result so far: 52456.6184
If we subtract 3260 from 3300, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 13:
The number 815 fits into 400 0 times, leaving a remainder of 400.
Record the quotient 0 as the next digit in the result. 
Result so far: 52456.6184
Subtracting 0 from 400 leaves us with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Moving on to step 14:
If we divide 4000 by 815, we get 4 and a remainder of 740.
Put 4 as the next digit of the answer. 
Result so far: 52456.618404
If we take 3260 away from 4000, we end up with 740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7400, and continue the process.

On to step 15:
When dividing 7400 by 815, we get 9 with a remainder of 65.
The next digit of our result is 9. 
Result so far: 52456.6184049
If we take 7335 away from 7400, we end up with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Moving on to step 16:
If we divide 650 by 815, we get 0 and a remainder of 650.
Write down 0 as next digit of the result. 
Result so far: 52456.6184049
The remainder is 650 after subtracting 0 from 650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6500, and continue the process.

The final result is 52456.6184049 with a remainder of 6.5e-07.