Let's divide 517037 by 81
The aim is to understand the frequency of 81 in 517037.

Advancing to step 1:
The number 81 fits into 5 0 times, leaving a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Include the next digit (1) from the dividend after 5, then repeat: 51 / 81

Moving on to step 2:
81 can be fit into 51 0 times, resulting in a remainder of 51.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 51 leaves us with 51.
Append the next digit (7) from the dividend to 51 and continue with: 517 / 81

Advancing to step 3:
81 can be fit into 517 6 times, resulting in a remainder of 31.
Put 6 as the next digit of the answer. 
Result so far: 6.0
Subtracting 486 from 517 leaves us with 31.
Fetch the next digit (0) from the dividend, attach it to 31 and continue: 310 / 81

Moving on to step 4:
81 goes into 310 3 times with a remainder of 67.
Put 3 as the next digit of the answer. 
Result so far: 63.0
If we subtract 243 from 310, we get 67.
Bring next digit (3) of the dividend behind the 67 and repeat the process: 673 / 81

Let's proceed to step 5:
673 divided by 81 is 8 with a remainder of 25.
The number 8 becomes the next digit in our result. 
Result so far: 638.0
If we take 648 away from 673, we end up with 25.
Take the next digit (7) from the dividend and append it to 25, then repeat: 257 / 81

On to step 6:
81 goes into 257 3 times with a remainder of 14.
The next digit of our result is 3. 
Result so far: 6383.0
If we take 243 away from 257, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 7:
81 can be fit into 140 1 times, resulting in a remainder of 59.
Record the quotient 1 as the next digit in the result. 
Result so far: 6383.1
The remainder is 59 after subtracting 81 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Moving on to step 8:
When dividing 590 by 81, we get 7 with a remainder of 23.
The next digit of our result is 7. 
Result so far: 6383.17
The remainder is 23 after subtracting 567 from 590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Advancing to step 9:
The number 81 fits into 230 2 times, leaving a remainder of 68.
Use 2 as the next digit of our solution. 
Result so far: 6383.172
If we subtract 162 from 230, we get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Moving on to step 10:
81 can be fit into 680 8 times, resulting in a remainder of 32.
Record the quotient 8 as the next digit in the result. 
Result so far: 6383.1728
If we subtract 648 from 680, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Step 11:
81 can be fit into 320 3 times, resulting in a remainder of 77.
Record the quotient 3 as the next digit in the result. 
Result so far: 6383.17283
The remainder is 77 after subtracting 243 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

Going ahead to step 12:
81 can be fit into 770 9 times, resulting in a remainder of 41.
The next digit of our result is 9. 
Result so far: 6383.172839
If we subtract 729 from 770, we get 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Advancing to step 13:
The number 81 fits into 410 5 times, leaving a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 6383.1728395
If we subtract 405 from 410, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 14:
When dividing 50 by 81, we get 0 with a remainder of 50.
The next digit of our result is 0. 
Result so far: 6383.1728395
If we take 0 away from 50, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

After the division, we end up with 6383.1728395 and a remainder of 5e-08.