We look at the division of 59031521 by 871 
The aim is to understand the frequency of 871 in 59031521.

Moving on to step 1:
If we divide 5 by 871, we get 0 and a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Bring next digit (9) of the dividend behind the 5 and repeat the process: 59 / 871

Moving on to step 2:
871 goes into 59 0 times with a remainder of 59.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 59 and we're left with 59.
Append the next digit (0) from the dividend to 59 and continue with: 590 / 871

Going ahead to step 3:
590 divided by 871 is 0 with a remainder of 590.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 590 after subtracting 0 from 590.
Take the next digit (3) from the dividend and append it to 590, then repeat: 5903 / 871

Moving on to step 4:
When dividing 5903 by 871, we get 6 with a remainder of 677.
Write down 6 as next digit of the result. 
Result so far: 6.0
Subtracting 5226 from 5903 leaves us with 677.
Include the next digit (1) from the dividend after 677, then repeat: 6771 / 871

On to step 5:
When dividing 6771 by 871, we get 7 with a remainder of 674.
Put 7 as the next digit of the answer. 
Result so far: 67.0
Deduct 6097 from 6771 and we're left with 674.
Bring next digit (5) of the dividend behind the 674 and repeat the process: 6745 / 871

Going ahead to step 6:
The number 871 fits into 6745 7 times, leaving a remainder of 648.
The number 7 becomes the next digit in our result. 
Result so far: 677.0
The remainder is 648 after subtracting 6097 from 6745.
Include the next digit (2) from the dividend after 648, then repeat: 6482 / 871

Moving on to step 7:
The number 871 fits into 6482 7 times, leaving a remainder of 385.
The next digit of our result is 7. 
Result so far: 6777.0
The remainder is 385 after subtracting 6097 from 6482.
Take the next digit (1) from the dividend and append it to 385, then repeat: 3851 / 871

Let's proceed to step 8:
If we divide 3851 by 871, we get 4 and a remainder of 367.
The next digit of our result is 4. 
Result so far: 67774.0
The remainder is 367 after subtracting 3484 from 3851.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3670, and continue the process.

On to step 9:
871 can be fit into 3670 4 times, resulting in a remainder of 186.
The number 4 becomes the next digit in our result. 
Result so far: 67774.4
If we take 3484 away from 3670, we end up with 186.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1860, and continue the process.

Advancing to step 10:
1860 divided by 871 is 2 with a remainder of 118.
Use 2 as the next digit of our solution. 
Result so far: 67774.42
Subtracting 1742 from 1860 leaves us with 118.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1180, and continue the process.

Step 11:
1180 divided by 871 is 1 with a remainder of 309.
Write down 1 as next digit of the result. 
Result so far: 67774.421
If we subtract 871 from 1180, we get 309.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3090, and continue the process.

Advancing to step 12:
The number 871 fits into 3090 3 times, leaving a remainder of 477.
The number 3 becomes the next digit in our result. 
Result so far: 67774.4213
Subtracting 2613 from 3090 leaves us with 477.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4770, and continue the process.

Moving on to step 13:
The number 871 fits into 4770 5 times, leaving a remainder of 415.
Put 5 as the next digit of the answer. 
Result so far: 67774.42135
The remainder is 415 after subtracting 4355 from 4770.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4150, and continue the process.

Advancing to step 14:
When dividing 4150 by 871, we get 4 with a remainder of 666.
Record the quotient 4 as the next digit in the result. 
Result so far: 67774.421354
If we take 3484 away from 4150, we end up with 666.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6660, and continue the process.

Step 15:
871 goes into 6660 7 times with a remainder of 563.
Put 7 as the next digit of the answer. 
Result so far: 67774.4213547
If we take 6097 away from 6660, we end up with 563.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5630, and continue the process.

Moving on to step 16:
When dividing 5630 by 871, we get 6 with a remainder of 404.
Put 6 as the next digit of the answer. 
Result so far: 67774.42135476
If we subtract 5226 from 5630, we get 404.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4040, and continue the process.

Our division results in 67774.42135476 with a remaining 4.04e-07.