We're dividing 456724 by 810 
The aim is to understand the frequency of 810 in 456724.

Advancing to step 1:
810 can be fit into 4 0 times, resulting in a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Include the next digit (5) from the dividend after 4, then repeat: 45 / 810

Step 2:
The number 810 fits into 45 0 times, leaving a remainder of 45.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 45 and we're left with 45.
Bring next digit (6) of the dividend behind the 45 and repeat the process: 456 / 810

Moving on to step 3:
810 goes into 456 0 times with a remainder of 456.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 456, we get 456.
Take the next digit (7) from the dividend and append it to 456, then repeat: 4567 / 810

Step 4:
4567 divided by 810 is 5 with a remainder of 517.
Put 5 as the next digit of the answer. 
Result so far: 5.0
If we subtract 4050 from 4567, we get 517.
Append the next digit (2) from the dividend to 517 and continue with: 5172 / 810

Moving on to step 5:
When dividing 5172 by 810, we get 6 with a remainder of 312.
Write down 6 as next digit of the result. 
Result so far: 56.0
If we take 4860 away from 5172, we end up with 312.
Fetch the next digit (4) from the dividend, attach it to 312 and continue: 3124 / 810

Advancing to step 6:
If we divide 3124 by 810, we get 3 and a remainder of 694.
Put 3 as the next digit of the answer. 
Result so far: 563.0
If we take 2430 away from 3124, we end up with 694.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6940, and continue the process.

Step 7:
6940 divided by 810 is 8 with a remainder of 460.
Put 8 as the next digit of the answer. 
Result so far: 563.8
Deduct 6480 from 6940 and we're left with 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4600, and continue the process.

Going ahead to step 8:
4600 divided by 810 is 5 with a remainder of 550.
The number 5 becomes the next digit in our result. 
Result so far: 563.85
Subtract 4050 from 4600 to get 550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5500, and continue the process.

Going ahead to step 9:
If we divide 5500 by 810, we get 6 and a remainder of 640.
Write down 6 as next digit of the result. 
Result so far: 563.856
Subtracting 4860 from 5500 leaves us with 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Going ahead to step 10:
If we divide 6400 by 810, we get 7 and a remainder of 730.
The next digit of our result is 7. 
Result so far: 563.8567
Subtract 5670 from 6400 to get 730.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7300, and continue the process.

Going ahead to step 11:
The number 810 fits into 7300 9 times, leaving a remainder of 10.
The number 9 becomes the next digit in our result. 
Result so far: 563.85679
If we take 7290 away from 7300, 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 12:
The number 810 fits into 100 0 times, leaving a remainder of 100.
The number 0 becomes the next digit in our result. 
Result so far: 563.85679
Deduct 0 from 100 and we're left with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Step 13:
When dividing 1000 by 810, we get 1 with a remainder of 190.
Record the quotient 1 as the next digit in the result. 
Result so far: 563.8567901
If we subtract 810 from 1000, we get 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Step 14:
The number 810 fits into 1900 2 times, leaving a remainder of 280.
Record the quotient 2 as the next digit in the result. 
Result so far: 563.85679012
Subtracting 1620 from 1900 leaves us 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.

After the division, we end up with 563.85679012 and a remainder of 2.8e-07.