Let's divide 80907092 by 805
The aim is to understand the frequency of 805 in 80907092.

On to step 1:
When dividing 8 by 805, we get 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Append the next digit (0) from the dividend to 8 and continue with: 80 / 805

Going ahead to step 2:
When dividing 80 by 805, we get 0 with a remainder of 80.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 80, we get 80.
Include the next digit (9) from the dividend after 80, then repeat: 809 / 805

Advancing to step 3:
The number 805 fits into 809 1 times, leaving a remainder of 4.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 805 from 809 leaves us with 4.
Fetch the next digit (0) from the dividend, attach it to 4 and continue: 40 / 805

On to step 4:
805 can be fit into 40 0 times, resulting in a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 10.0
If we subtract 0 from 40, we get 40.
Append the next digit (7) from the dividend to 40 and continue with: 407 / 805

Step 5:
805 can be fit into 407 0 times, resulting in a remainder of 407.
Record the quotient 0 as the next digit in the result. 
Result so far: 100.0
Subtracting 0 from 407 leaves us with 407.
Grab the next digit (0) from the dividend, add it to 407, then carry on: 4070 / 805

Step 6:
805 can be fit into 4070 5 times, resulting in a remainder of 45.
The number 5 becomes the next digit in our result. 
Result so far: 1005.0
The remainder is 45 after subtracting 4025 from 4070.
Append the next digit (9) from the dividend to 45 and continue with: 459 / 805

Step 7:
When dividing 459 by 805, we get 0 with a remainder of 459.
Use 0 as the next digit of our solution. 
Result so far: 10050.0
Subtract 0 from 459 to get 459.
Append the next digit (2) from the dividend to 459 and continue with: 4592 / 805

Going ahead to step 8:
If we divide 4592 by 805, we get 5 and a remainder of 567.
Use 5 as the next digit of our solution. 
Result so far: 100505.0
Subtract 4025 from 4592 to get 567.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5670, and continue the process.

On to step 9:
When dividing 5670 by 805, we get 7 with a remainder of 35.
The next digit of our result is 7. 
Result so far: 100505.7
Subtracting 5635 from 5670 leaves us with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Let's proceed to step 10:
350 divided by 805 is 0 with a remainder of 350.
Write down 0 as next digit of the result. 
Result so far: 100505.7
Subtracting 0 from 350 leaves us with 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

Advancing to step 11:
When dividing 3500 by 805, we get 4 with a remainder of 280.
The number 4 becomes the next digit in our result. 
Result so far: 100505.704
Deduct 3220 from 3500 and we're left with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

On to step 12:
805 goes into 2800 3 times with a remainder of 385.
Write down 3 as next digit of the result. 
Result so far: 100505.7043
Subtracting 2415 from 2800 leaves us with 385.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3850, and continue the process.

On to step 13:
If we divide 3850 by 805, we get 4 and a remainder of 630.
Write down 4 as next digit of the result. 
Result so far: 100505.70434
If we subtract 3220 from 3850, we get 630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6300, and continue the process.

Step 14:
805 goes into 6300 7 times with a remainder of 665.
Record the quotient 7 as the next digit in the result. 
Result so far: 100505.704347
If we take 5635 away from 6300, we end up with 665.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6650, and continue the process.

On to step 15:
If we divide 6650 by 805, we get 8 and a remainder of 210.
Record the quotient 8 as the next digit in the result. 
Result so far: 100505.7043478
The remainder is 210 after subtracting 6440 from 6650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Advancing to step 16:
805 can be fit into 2100 2 times, resulting in a remainder of 490.
Put 2 as the next digit of the answer. 
Result so far: 100505.70434782
Deduct 1610 from 2100 and we're left with 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4900, and continue the process.

The final outcome is 100505.70434782, with a leftover of 4.9e-07.