We look at the division of 38010559 by 871 
The aim is to understand the frequency of 871 in 38010559.

On to step 1:
When dividing 3 by 871, we get 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Take the next digit (8) from the dividend and append it to 3, then repeat: 38 / 871

Moving on to step 2:
When dividing 38 by 871, we get 0 with a remainder of 38.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 38 leaves us with 38.
Include the next digit (0) from the dividend after 38, then repeat: 380 / 871

Going ahead to step 3:
When dividing 380 by 871, we get 0 with a remainder of 380.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 380 and we're left with 380.
Grab the next digit (1) from the dividend, add it to 380, then carry on: 3801 / 871

Step 4:
If we divide 3801 by 871, we get 4 and a remainder of 317.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Subtract 3484 from 3801 to get 317.
Bring next digit (0) of the dividend behind the 317 and repeat the process: 3170 / 871

Moving on to step 5:
The number 871 fits into 3170 3 times, leaving a remainder of 557.
Put 3 as the next digit of the answer. 
Result so far: 43.0
If we subtract 2613 from 3170, we get 557.
Bring next digit (5) of the dividend behind the 557 and repeat the process: 5575 / 871

Going ahead to step 6:
871 can be fit into 5575 6 times, resulting in a remainder of 349.
Use 6 as the next digit of our solution. 
Result so far: 436.0
The remainder is 349 after subtracting 5226 from 5575.
Append the next digit (5) from the dividend to 349 and continue with: 3495 / 871

Going ahead to step 7:
871 can be fit into 3495 4 times, resulting in a remainder of 11.
Use 4 as the next digit of our solution. 
Result so far: 4364.0
Subtracting 3484 from 3495 leaves us with 11.
Grab the next digit (9) from the dividend, add it to 11, then carry on: 119 / 871

Step 8:
If we divide 119 by 871, we get 0 and a remainder of 119.
Use 0 as the next digit of our solution. 
Result so far: 43640.0
If we subtract 0 from 119, we get 119.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1190, and continue the process.

Let's proceed to step 9:
The number 871 fits into 1190 1 times, leaving a remainder of 319.
Put 1 as the next digit of the answer. 
Result so far: 43640.1
The remainder is 319 after subtracting 871 from 1190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3190, and continue the process.

Step 10:
If we divide 3190 by 871, we get 3 and a remainder of 577.
Put 3 as the next digit of the answer. 
Result so far: 43640.13
The remainder is 577 after subtracting 2613 from 3190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5770, and continue the process.

Advancing to step 11:
If we divide 5770 by 871, we get 6 and a remainder of 544.
The number 6 becomes the next digit in our result. 
Result so far: 43640.136
Deduct 5226 from 5770 and we're left with 544.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5440, and continue the process.

Advancing to step 12:
5440 divided by 871 is 6 with a remainder of 214.
The next digit of our result is 6. 
Result so far: 43640.1366
Deduct 5226 from 5440 and we're left with 214.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2140, and continue the process.

Our division results in 43640.1366 with a remaining 0.00214.