We're dividing 129989 by 83 
The aim is to understand the frequency of 83 in 129989.

Let's proceed to step 1:
1 divided by 83 is 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 83

Step 2:
The number 83 fits into 12 0 times, leaving a remainder of 12.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 12 after subtracting 0 from 12.
Take the next digit (9) from the dividend and append it to 12, then repeat: 129 / 83

Going ahead to step 3:
When dividing 129 by 83, we get 1 with a remainder of 46.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 83 from 129, we get 46.
Fetch the next digit (9) from the dividend, attach it to 46 and continue: 469 / 83

Going ahead to step 4:
If we divide 469 by 83, we get 5 and a remainder of 54.
Record the quotient 5 as the next digit in the result. 
Result so far: 15.0
If we take 415 away from 469, we end up with 54.
Take the next digit (8) from the dividend and append it to 54, then repeat: 548 / 83

Step 5:
The number 83 fits into 548 6 times, leaving a remainder of 50.
Record the quotient 6 as the next digit in the result. 
Result so far: 156.0
The remainder is 50 after subtracting 498 from 548.
Take the next digit (9) from the dividend and append it to 50, then repeat: 509 / 83

Moving on to step 6:
When dividing 509 by 83, we get 6 with a remainder of 11.
The number 6 becomes the next digit in our result. 
Result so far: 1566.0
Subtract 498 from 509 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Moving on to step 7:
The number 83 fits into 110 1 times, leaving a remainder of 27.
Put 1 as the next digit of the answer. 
Result so far: 1566.1
Subtracting 83 from 110 leaves us with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Going ahead to step 8:
270 divided by 83 is 3 with a remainder of 21.
Record the quotient 3 as the next digit in the result. 
Result so far: 1566.13
The remainder is 21 after subtracting 249 from 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Let's proceed to step 9:
When dividing 210 by 83, we get 2 with a remainder of 44.
Use 2 as the next digit of our solution. 
Result so far: 1566.132
The remainder is 44 after subtracting 166 from 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Step 10:
83 goes into 440 5 times with a remainder of 25.
Write down 5 as next digit of the result. 
Result so far: 1566.1325
The remainder is 25 after subtracting 415 from 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 11:
The number 83 fits into 250 3 times, leaving a remainder of 1.
The next digit of our result is 3. 
Result so far: 1566.13253
If we subtract 249 from 250, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 12:
When dividing 10 by 83, we get 0 with a remainder of 10.
The next digit of our result is 0. 
Result so far: 1566.13253
The remainder is 10 after subtracting 0 from 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 13:
If we divide 100 by 83, we get 1 and a remainder of 17.
Record the quotient 1 as the next digit in the result. 
Result so far: 1566.1325301
Deduct 83 from 100 and we're left 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.

Let's proceed to step 14:
When dividing 170 by 83, we get 2 with a remainder of 4.
The number 2 becomes the next digit in our result. 
Result so far: 1566.13253012
Deduct 166 from 170 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The final outcome is 1566.13253012, with a leftover of 4e-09.