Let's divide 17278641 by 813
The aim is to understand the frequency of 813 in 17278641.

Going ahead to step 1:
813 can be fit into 1 0 times, resulting in a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Bring next digit (7) of the dividend behind the 1 and repeat the process: 17 / 813

Step 2:
813 can be fit into 17 0 times, resulting in a remainder of 17.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 17 leaves us with 17.
Fetch the next digit (2) from the dividend, attach it to 17 and continue: 172 / 813

Going ahead to step 3:
The number 813 fits into 172 0 times, leaving a remainder of 172.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 172 after subtracting 0 from 172.
Include the next digit (7) from the dividend after 172, then repeat: 1727 / 813

Let's proceed to step 4:
If we divide 1727 by 813, we get 2 and a remainder of 101.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
The remainder is 101 after subtracting 1626 from 1727.
Fetch the next digit (8) from the dividend, attach it to 101 and continue: 1018 / 813

On to step 5:
813 can be fit into 1018 1 times, resulting in a remainder of 205.
Put 1 as the next digit of the answer. 
Result so far: 21.0
Subtracting 813 from 1018 leaves us with 205.
Take the next digit (6) from the dividend and append it to 205, then repeat: 2056 / 813

Going ahead to step 6:
When dividing 2056 by 813, we get 2 with a remainder of 430.
Use 2 as the next digit of our solution. 
Result so far: 212.0
If we take 1626 away from 2056, we end up with 430.
Append the next digit (4) from the dividend to 430 and continue with: 4304 / 813

Let's proceed to step 7:
4304 divided by 813 is 5 with a remainder of 239.
The next digit of our result is 5. 
Result so far: 2125.0
Subtracting 4065 from 4304 leaves us with 239.
Include the next digit (1) from the dividend after 239, then repeat: 2391 / 813

Going ahead to step 8:
813 goes into 2391 2 times with a remainder of 765.
The next digit of our result is 2. 
Result so far: 21252.0
If we subtract 1626 from 2391, we get 765.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7650, and continue the process.

Advancing to step 9:
813 can be fit into 7650 9 times, resulting in a remainder of 333.
Put 9 as the next digit of the answer. 
Result so far: 21252.9
The remainder is 333 after subtracting 7317 from 7650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3330, and continue the process.

Advancing to step 10:
If we divide 3330 by 813, we get 4 and a remainder of 78.
The next digit of our result is 4. 
Result so far: 21252.94
If we take 3252 away from 3330, we end up 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.

Going ahead to step 11:
813 can be fit into 780 0 times, resulting in a remainder of 780.
The number 0 becomes the next digit in our result. 
Result so far: 21252.94
Deduct 0 from 780 and we're left with 780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7800, and continue the process.

Moving on to step 12:
813 can be fit into 7800 9 times, resulting in a remainder of 483.
The number 9 becomes the next digit in our result. 
Result so far: 21252.9409
The remainder is 483 after subtracting 7317 from 7800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4830, and continue the process.

Step 13:
813 goes into 4830 5 times with a remainder of 765.
Use 5 as the next digit of our solution. 
Result so far: 21252.94095
If we subtract 4065 from 4830, we get 765.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7650, and continue the process.

Moving on to step 14:
If we divide 7650 by 813, we get 9 and a remainder of 333.
The number 9 becomes the next digit in our result. 
Result so far: 21252.940959
If we take 7317 away from 7650, we end up with 333.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3330, and continue the process.

Moving on to step 15:
When dividing 3330 by 813, we get 4 with a remainder of 78.
Write down 4 as next digit of the result. 
Result so far: 21252.9409594
Subtract 3252 from 3330 to get 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 16:
If we divide 780 by 813, we get 0 and a remainder of 780.
Record the quotient 0 as the next digit in the result. 
Result so far: 21252.9409594
If we subtract 0 from 780, we get 780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7800, and continue the process.

The quotient of the division is 21252.9409594, and the remainder is 7.8e-07.