Let's divide 39231712 by 87
The aim is to understand the frequency of 87 in 39231712.

Let's proceed to step 1:
The number 87 fits into 3 0 times, leaving a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 87

Moving on to step 2:
The number 87 fits into 39 0 times, leaving a remainder of 39.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 39, we get 39.
Bring next digit (2) of the dividend behind the 39 and repeat the process: 392 / 87

Moving on to step 3:
392 divided by 87 is 4 with a remainder of 44.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we take 348 away from 392, we end up with 44.
Take the next digit (3) from the dividend and append it to 44, then repeat: 443 / 87

Step 4:
87 goes into 443 5 times with a remainder of 8.
The next digit of our result is 5. 
Result so far: 45.0
If we take 435 away from 443, we end up with 8.
Fetch the next digit (1) from the dividend, attach it to 8 and continue: 81 / 87

Moving on to step 5:
When dividing 81 by 87, we get 0 with a remainder of 81.
The number 0 becomes the next digit in our result. 
Result so far: 450.0
If we subtract 0 from 81, we get 81.
Take the next digit (7) from the dividend and append it to 81, then repeat: 817 / 87

Advancing to step 6:
87 goes into 817 9 times with a remainder of 34.
Put 9 as the next digit of the answer. 
Result so far: 4509.0
Deduct 783 from 817 and we're left with 34.
Include the next digit (1) from the dividend after 34, then repeat: 341 / 87

On to step 7:
When dividing 341 by 87, we get 3 with a remainder of 80.
The next digit of our result is 3. 
Result so far: 45093.0
Subtracting 261 from 341 leaves us with 80.
Bring next digit (2) of the dividend behind the 80 and repeat the process: 802 / 87

Let's proceed to step 8:
The number 87 fits into 802 9 times, leaving a remainder of 19.
Put 9 as the next digit of the answer. 
Result so far: 450939.0
If we subtract 783 from 802, we get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Going ahead to step 9:
When dividing 190 by 87, we get 2 with a remainder of 16.
The number 2 becomes the next digit in our result. 
Result so far: 450939.2
If we take 174 away from 190, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 10:
The number 87 fits into 160 1 times, leaving a remainder of 73.
Use 1 as the next digit of our solution. 
Result so far: 450939.21
If we take 87 away from 160, we end up with 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Advancing to step 11:
When dividing 730 by 87, we get 8 with a remainder of 34.
Write down 8 as next digit of the result. 
Result so far: 450939.218
If we take 696 away from 730, we end up with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Moving on to step 12:
340 divided by 87 is 3 with a remainder of 79.
Record the quotient 3 as the next digit in the result. 
Result so far: 450939.2183
If we subtract 261 from 340, we get 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

Going ahead to step 13:
790 divided by 87 is 9 with a remainder of 7.
Record the quotient 9 as the next digit in the result. 
Result so far: 450939.21839
Deduct 783 from 790 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 14:
When dividing 70 by 87, we get 0 with a remainder of 70.
The next digit of our result is 0. 
Result so far: 450939.21839
The remainder is 70 after subtracting 0 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Step 15:
When dividing 700 by 87, we get 8 with a remainder of 4.
The next digit of our result is 8. 
Result so far: 450939.2183908
If we subtract 696 from 700, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 16:
The number 87 fits into 40 0 times, leaving a remainder of 40.
The next digit of our result is 0. 
Result so far: 450939.2183908
If we take 0 away from 40, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Our division results in 450939.2183908 with a remaining 4e-08.