39939575 divided by 587 
The aim is to understand the frequency of 587 in 39939575.

Let's proceed to step 1:
587 goes into 3 0 times with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Bring next digit (9) of the dividend behind the 3 and repeat the process: 39 / 587

Moving on to step 2:
587 goes into 39 0 times with a remainder of 39.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 39, we get 39.
Take the next digit (9) from the dividend and append it to 39, then repeat: 399 / 587

Let's proceed to step 3:
The number 587 fits into 399 0 times, leaving a remainder of 399.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 399 after subtracting 0 from 399.
Fetch the next digit (3) from the dividend, attach it to 399 and continue: 3993 / 587

On to step 4:
3993 divided by 587 is 6 with a remainder of 471.
The next digit of our result is 6. 
Result so far: 6.0
If we subtract 3522 from 3993, we get 471.
Bring next digit (9) of the dividend behind the 471 and repeat the process: 4719 / 587

On to step 5:
4719 divided by 587 is 8 with a remainder of 23.
Put 8 as the next digit of the answer. 
Result so far: 68.0
If we subtract 4696 from 4719, we get 23.
Include the next digit (5) from the dividend after 23, then repeat: 235 / 587

Moving on to step 6:
When dividing 235 by 587, we get 0 with a remainder of 235.
Use 0 as the next digit of our solution. 
Result so far: 680.0
Subtracting 0 from 235 leaves us with 235.
Grab the next digit (7) from the dividend, add it to 235, then carry on: 2357 / 587

Advancing to step 7:
When dividing 2357 by 587, we get 4 with a remainder of 9.
The next digit of our result is 4. 
Result so far: 6804.0
Subtract 2348 from 2357 to get 9.
Take the next digit (5) from the dividend and append it to 9, then repeat: 95 / 587

On to step 8:
587 can be fit into 95 0 times, resulting in a remainder of 95.
Record the quotient 0 as the next digit in the result. 
Result so far: 68040.0
If we take 0 away from 95, we end up with 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

On to step 9:
If we divide 950 by 587, we get 1 and a remainder of 363.
Record the quotient 1 as the next digit in the result. 
Result so far: 68040.1
Subtract 587 from 950 to get 363.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3630, and continue the process.

Let's proceed to step 10:
3630 divided by 587 is 6 with a remainder of 108.
Write down 6 as next digit of the result. 
Result so far: 68040.16
The remainder is 108 after subtracting 3522 from 3630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

Advancing to step 11:
587 goes into 1080 1 times with a remainder of 493.
The number 1 becomes the next digit in our result. 
Result so far: 68040.161
If we take 587 away from 1080, we end up with 493.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4930, and continue the process.

Going ahead to step 12:
587 goes into 4930 8 times with a remainder of 234.
Put 8 as the next digit of the answer. 
Result so far: 68040.1618
Subtracting 4696 from 4930 leaves us with 234.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2340, and continue the process.

Moving on to step 13:
The number 587 fits into 2340 3 times, leaving a remainder of 579.
The next digit of our result is 3. 
Result so far: 68040.16183
If we take 1761 away from 2340, we end up with 579.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5790, and continue the process.

Moving on to step 14:
5790 divided by 587 is 9 with a remainder of 507.
Record the quotient 9 as the next digit in the result. 
Result so far: 68040.161839
If we take 5283 away from 5790, we end up with 507.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5070, and continue the process.

Step 15:
5070 divided by 587 is 8 with a remainder of 374.
The next digit of our result is 8. 
Result so far: 68040.1618398
If we take 4696 away from 5070, we end up with 374.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3740, and continue the process.

On to step 16:
3740 divided by 587 is 6 with a remainder of 218.
Use 6 as the next digit of our solution. 
Result so far: 68040.16183986
The remainder is 218 after subtracting 3522 from 3740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2180, and continue the process.

Our division results in 68040.16183986 with a remaining 2.18e-07.