We divide 686660 by 83
The aim is to understand the frequency of 83 in 686660.

Step 1:
83 goes into 6 0 times with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Grab the next digit (8) from the dividend, add it to 6, then carry on: 68 / 83

Going ahead to step 2:
83 can be fit into 68 0 times, resulting in a remainder of 68.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 68 after subtracting 0 from 68.
Grab the next digit (6) from the dividend, add it to 68, then carry on: 686 / 83

Step 3:
When dividing 686 by 83, we get 8 with a remainder of 22.
Write down 8 as next digit of the result. 
Result so far: 8.0
If we subtract 664 from 686, we get 22.
Take the next digit (6) from the dividend and append it to 22, then repeat: 226 / 83

Going ahead to step 4:
83 goes into 226 2 times with a remainder of 60.
Use 2 as the next digit of our solution. 
Result so far: 82.0
If we subtract 166 from 226, we get 60.
Bring next digit (6) of the dividend behind the 60 and repeat the process: 606 / 83

On to step 5:
606 divided by 83 is 7 with a remainder of 25.
The next digit of our result is 7. 
Result so far: 827.0
The remainder is 25 after subtracting 581 from 606.
Fetch the next digit (0) from the dividend, attach it to 25 and continue: 250 / 83

Advancing to step 6:
When dividing 250 by 83, we get 3 with a remainder of 1.
The next digit of our result is 3. 
Result so far: 8273.0
If we take 249 away from 250, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 7:
The number 83 fits into 10 0 times, leaving a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 8273.0
If we take 0 away from 10, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 8:
When dividing 100 by 83, we get 1 with a remainder of 17.
Use 1 as the next digit of our solution. 
Result so far: 8273.01
Subtracting 83 from 100 leaves us with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Moving on to step 9:
83 goes into 170 2 times with a remainder of 4.
Put 2 as the next digit of the answer. 
Result so far: 8273.012
If we subtract 166 from 170, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 10:
83 goes into 40 0 times with a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 8273.012
The remainder is 40 after subtracting 0 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 11:
The number 83 fits into 400 4 times, leaving a remainder of 68.
The next digit of our result is 4. 
Result so far: 8273.01204
Subtracting 332 from 400 leaves us with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

On to step 12:
680 divided by 83 is 8 with a remainder of 16.
The next digit of our result is 8. 
Result so far: 8273.012048
Deduct 664 from 680 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 13:
160 divided by 83 is 1 with a remainder of 77.
The next digit of our result is 1. 
Result so far: 8273.0120481
Subtracting 83 from 160 leaves us with 77.
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 14:
The number 83 fits into 770 9 times, leaving a remainder of 23.
Record the quotient 9 as the next digit in the result. 
Result so far: 8273.01204819
If we take 747 away from 770, we end up with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

In conclusion, the division gives 8273.01204819 with a balance of 2.3e-08.