We look at the division of 31459128 by 813 
The aim is to understand the frequency of 813 in 31459128.

Going ahead to step 1:
When dividing 3 by 813, we get 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Grab the next digit (1) from the dividend, add it to 3, then carry on: 31 / 813

Moving on to step 2:
31 divided by 813 is 0 with a remainder of 31.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 31 to get 31.
Take the next digit (4) from the dividend and append it to 31, then repeat: 314 / 813

Going ahead to step 3:
314 divided by 813 is 0 with a remainder of 314.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 314 to get 314.
Grab the next digit (5) from the dividend, add it to 314, then carry on: 3145 / 813

Advancing to step 4:
If we divide 3145 by 813, we get 3 and a remainder of 706.
Write down 3 as next digit of the result. 
Result so far: 3.0
If we subtract 2439 from 3145, we get 706.
Grab the next digit (9) from the dividend, add it to 706, then carry on: 7069 / 813

Moving on to step 5:
When dividing 7069 by 813, we get 8 with a remainder of 565.
The next digit of our result is 8. 
Result so far: 38.0
Subtracting 6504 from 7069 leaves us with 565.
Take the next digit (1) from the dividend and append it to 565, then repeat: 5651 / 813

Let's proceed to step 6:
When dividing 5651 by 813, we get 6 with a remainder of 773.
Use 6 as the next digit of our solution. 
Result so far: 386.0
If we subtract 4878 from 5651, we get 773.
Fetch the next digit (2) from the dividend, attach it to 773 and continue: 7732 / 813

Step 7:
The number 813 fits into 7732 9 times, leaving a remainder of 415.
Record the quotient 9 as the next digit in the result. 
Result so far: 3869.0
If we take 7317 away from 7732, we end up with 415.
Take the next digit (8) from the dividend and append it to 415, then repeat: 4158 / 813

On to step 8:
If we divide 4158 by 813, we get 5 and a remainder of 93.
The number 5 becomes the next digit in our result. 
Result so far: 38695.0
If we subtract 4065 from 4158, we get 93.
Since there are no more digits in the dividend, we add a zero to the remainder making it 930, and continue the process.

Step 9:
The number 813 fits into 930 1 times, leaving a remainder of 117.
Put 1 as the next digit of the answer. 
Result so far: 38695.1
If we take 813 away from 930, we end up with 117.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1170, and continue the process.

Advancing to step 10:
The number 813 fits into 1170 1 times, leaving a remainder of 357.
The number 1 becomes the next digit in our result. 
Result so far: 38695.11
If we subtract 813 from 1170, we get 357.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3570, and continue the process.

In conclusion, the division gives 38695.11 with a balance of 0.357.