We divide 83731581 by 871
The aim is to understand the frequency of 871 in 83731581.

Step 1:
The number 871 fits into 8 0 times, leaving a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Take the next digit (3) from the dividend and append it to 8, then repeat: 83 / 871

On to step 2:
871 goes into 83 0 times with a remainder of 83.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 83 after subtracting 0 from 83.
Append the next digit (7) from the dividend to 83 and continue with: 837 / 871

Going ahead to step 3:
The number 871 fits into 837 0 times, leaving a remainder of 837.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 837 after subtracting 0 from 837.
Fetch the next digit (3) from the dividend, attach it to 837 and continue: 8373 / 871

Let's proceed to step 4:
When dividing 8373 by 871, we get 9 with a remainder of 534.
Put 9 as the next digit of the answer. 
Result so far: 9.0
Subtract 7839 from 8373 to get 534.
Take the next digit (1) from the dividend and append it to 534, then repeat: 5341 / 871

Moving on to step 5:
When dividing 5341 by 871, we get 6 with a remainder of 115.
Record the quotient 6 as the next digit in the result. 
Result so far: 96.0
The remainder is 115 after subtracting 5226 from 5341.
Include the next digit (5) from the dividend after 115, then repeat: 1155 / 871

Step 6:
The number 871 fits into 1155 1 times, leaving a remainder of 284.
Write down 1 as next digit of the result. 
Result so far: 961.0
Subtract 871 from 1155 to get 284.
Append the next digit (8) from the dividend to 284 and continue with: 2848 / 871

Advancing to step 7:
The number 871 fits into 2848 3 times, leaving a remainder of 235.
The next digit of our result is 3. 
Result so far: 9613.0
Subtract 2613 from 2848 to get 235.
Bring next digit (1) of the dividend behind the 235 and repeat the process: 2351 / 871

On to step 8:
871 can be fit into 2351 2 times, resulting in a remainder of 609.
The next digit of our result is 2. 
Result so far: 96132.0
Deduct 1742 from 2351 and we're left with 609.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6090, and continue the process.

Advancing to step 9:
The number 871 fits into 6090 6 times, leaving a remainder of 864.
The number 6 becomes the next digit in our result. 
Result so far: 96132.6
The remainder is 864 after subtracting 5226 from 6090.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8640, and continue the process.

On to step 10:
871 goes into 8640 9 times with a remainder of 801.
The number 9 becomes the next digit in our result. 
Result so far: 96132.69
The remainder is 801 after subtracting 7839 from 8640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8010, and continue the process.

On to step 11:
871 can be fit into 8010 9 times, resulting in a remainder of 171.
Put 9 as the next digit of the answer. 
Result so far: 96132.699
If we take 7839 away from 8010, we end up with 171.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1710, and continue the process.

The final outcome is 96132.699, with a leftover of 0.0171.