90929119 ÷ 871 
The aim is to understand the frequency of 871 in 90929119.

Let's proceed to step 1:
The number 871 fits into 9 0 times, leaving a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Append the next digit (0) from the dividend to 9 and continue with: 90 / 871

Let's proceed to step 2:
When dividing 90 by 871, we get 0 with a remainder of 90.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 90 to get 90.
Include the next digit (9) from the dividend after 90, then repeat: 909 / 871

Advancing to step 3:
871 goes into 909 1 times with a remainder of 38.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 38 after subtracting 871 from 909.
Append the next digit (2) from the dividend to 38 and continue with: 382 / 871

On to step 4:
When dividing 382 by 871, we get 0 with a remainder of 382.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
Subtracting 0 from 382 leaves us with 382.
Bring next digit (9) of the dividend behind the 382 and repeat the process: 3829 / 871

On to step 5:
If we divide 3829 by 871, we get 4 and a remainder of 345.
The next digit of our result is 4. 
Result so far: 104.0
If we subtract 3484 from 3829, we get 345.
Grab the next digit (1) from the dividend, add it to 345, then carry on: 3451 / 871

Going ahead to step 6:
871 can be fit into 3451 3 times, resulting in a remainder of 838.
Use 3 as the next digit of our solution. 
Result so far: 1043.0
If we take 2613 away from 3451, we end up with 838.
Append the next digit (1) from the dividend to 838 and continue with: 8381 / 871

Going ahead to step 7:
When dividing 8381 by 871, we get 9 with a remainder of 542.
The number 9 becomes the next digit in our result. 
Result so far: 10439.0
The remainder is 542 after subtracting 7839 from 8381.
Fetch the next digit (9) from the dividend, attach it to 542 and continue: 5429 / 871

Let's proceed to step 8:
The number 871 fits into 5429 6 times, leaving a remainder of 203.
The number 6 becomes the next digit in our result. 
Result so far: 104396.0
Subtracting 5226 from 5429 leaves us with 203.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2030, and continue the process.

Let's proceed to step 9:
871 can be fit into 2030 2 times, resulting in a remainder of 288.
Record the quotient 2 as the next digit in the result. 
Result so far: 104396.2
If we subtract 1742 from 2030, we get 288.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2880, and continue the process.

Step 10:
If we divide 2880 by 871, we get 3 and a remainder of 267.
Use 3 as the next digit of our solution. 
Result so far: 104396.23
If we take 2613 away from 2880, we end up with 267.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2670, and continue the process.

Going ahead to step 11:
If we divide 2670 by 871, we get 3 and a remainder of 57.
Record the quotient 3 as the next digit in the result. 
Result so far: 104396.233
Deduct 2613 from 2670 and we're left with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

The final result is 104396.233 with a remainder of 0.0057.