804809 divided by 83 
The aim is to understand the frequency of 83 in 804809.

On to step 1:
8 divided by 83 is 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Take the next digit (0) from the dividend and append it to 8, then repeat: 80 / 83

Advancing to step 2:
80 divided by 83 is 0 with a remainder of 80.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 80 and we're left with 80.
Fetch the next digit (4) from the dividend, attach it to 80 and continue: 804 / 83

Moving on to step 3:
When dividing 804 by 83, we get 9 with a remainder of 57.
Write down 9 as next digit of the result. 
Result so far: 9.0
If we take 747 away from 804, we end up with 57.
Include the next digit (8) from the dividend after 57, then repeat: 578 / 83

Advancing to step 4:
578 divided by 83 is 6 with a remainder of 80.
Record the quotient 6 as the next digit in the result. 
Result so far: 96.0
The remainder is 80 after subtracting 498 from 578.
Bring next digit (0) of the dividend behind the 80 and repeat the process: 800 / 83

Advancing to step 5:
The number 83 fits into 800 9 times, leaving a remainder of 53.
Write down 9 as next digit of the result. 
Result so far: 969.0
Deduct 747 from 800 and we're left with 53.
Grab the next digit (9) from the dividend, add it to 53, then carry on: 539 / 83

On to step 6:
83 can be fit into 539 6 times, resulting in a remainder of 41.
The next digit of our result is 6. 
Result so far: 9696.0
The remainder is 41 after subtracting 498 from 539.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Let's proceed to step 7:
The number 83 fits into 410 4 times, leaving a remainder of 78.
The next digit of our result is 4. 
Result so far: 9696.4
Subtracting 332 from 410 leaves us with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Advancing to step 8:
When dividing 780 by 83, we get 9 with a remainder of 33.
Write down 9 as next digit of the result. 
Result so far: 9696.49
Deduct 747 from 780 and we're left with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Let's proceed to step 9:
If we divide 330 by 83, we get 3 and a remainder of 81.
Put 3 as the next digit of the answer. 
Result so far: 9696.493
If we take 249 away from 330, we end up with 81.
Since there are no more digits in the dividend, we add a zero to the remainder making it 810, and continue the process.

On to step 10:
If we divide 810 by 83, we get 9 and a remainder of 63.
Write down 9 as next digit of the result. 
Result so far: 9696.4939
Subtract 747 from 810 to get 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Moving on to step 11:
83 can be fit into 630 7 times, resulting in a remainder of 49.
Put 7 as the next digit of the answer. 
Result so far: 9696.49397
If we take 581 away from 630, we end up with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Advancing to step 12:
If we divide 490 by 83, we get 5 and a remainder of 75.
Put 5 as the next digit of the answer. 
Result so far: 9696.493975
Subtract 415 from 490 to get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

On to step 13:
The number 83 fits into 750 9 times, leaving a remainder of 3.
The next digit of our result is 9. 
Result so far: 9696.4939759
The remainder is 3 after subtracting 747 from 750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 14:
83 goes into 30 0 times with a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 9696.4939759
Subtracting 0 from 30 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

In conclusion, the division gives 9696.4939759 with a balance of 3e-08.