We look at the division of 67818077 by 831 
The aim is to understand the frequency of 831 in 67818077.

On to step 1:
6 divided by 831 is 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Grab the next digit (7) from the dividend, add it to 6, then carry on: 67 / 831

Step 2:
If we divide 67 by 831, we get 0 and a remainder of 67.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 67 and we're left with 67.
Fetch the next digit (8) from the dividend, attach it to 67 and continue: 678 / 831

Moving on to step 3:
678 divided by 831 is 0 with a remainder of 678.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 678, we get 678.
Append the next digit (1) from the dividend to 678 and continue with: 6781 / 831

Advancing to step 4:
If we divide 6781 by 831, we get 8 and a remainder of 133.
Use 8 as the next digit of our solution. 
Result so far: 8.0
If we subtract 6648 from 6781, we get 133.
Grab the next digit (8) from the dividend, add it to 133, then carry on: 1338 / 831

Let's proceed to step 5:
When dividing 1338 by 831, we get 1 with a remainder of 507.
Record the quotient 1 as the next digit in the result. 
Result so far: 81.0
Subtracting 831 from 1338 leaves us with 507.
Fetch the next digit (0) from the dividend, attach it to 507 and continue: 5070 / 831

Moving on to step 6:
831 can be fit into 5070 6 times, resulting in a remainder of 84.
The next digit of our result is 6. 
Result so far: 816.0
If we take 4986 away from 5070, we end up with 84.
Take the next digit (7) from the dividend and append it to 84, then repeat: 847 / 831

Moving on to step 7:
The number 831 fits into 847 1 times, leaving a remainder of 16.
Use 1 as the next digit of our solution. 
Result so far: 8161.0
If we subtract 831 from 847, we get 16.
Fetch the next digit (7) from the dividend, attach it to 16 and continue: 167 / 831

On to step 8:
167 divided by 831 is 0 with a remainder of 167.
Put 0 as the next digit of the answer. 
Result so far: 81610.0
Deduct 0 from 167 and we're left with 167.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1670, and continue the process.

Let's proceed to step 9:
1670 divided by 831 is 2 with a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 81610.2
If we take 1662 away from 1670, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 10:
If we divide 80 by 831, we get 0 and a remainder of 80.
Put 0 as the next digit of the answer. 
Result so far: 81610.2
The remainder is 80 after subtracting 0 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Let's proceed to step 11:
831 can be fit into 800 0 times, resulting in a remainder of 800.
The number 0 becomes the next digit in our result. 
Result so far: 81610.2
If we take 0 away from 800, we end up with 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8000, and continue the process.

Our division results in 81610.2 with a remaining 0.08.