We look at the division of 86046977 by 831 
The aim is to understand the frequency of 831 in 86046977.

Let's proceed to step 1:
When dividing 8 by 831, we get 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Bring next digit (6) of the dividend behind the 8 and repeat the process: 86 / 831

Let's proceed to step 2:
The number 831 fits into 86 0 times, leaving a remainder of 86.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 86 and we're left with 86.
Include the next digit (0) from the dividend after 86, then repeat: 860 / 831

Step 3:
The number 831 fits into 860 1 times, leaving a remainder of 29.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 831 from 860 and we're left with 29.
Append the next digit (4) from the dividend to 29 and continue with: 294 / 831

Going ahead to step 4:
831 goes into 294 0 times with a remainder of 294.
The next digit of our result is 0. 
Result so far: 10.0
The remainder is 294 after subtracting 0 from 294.
Grab the next digit (6) from the dividend, add it to 294, then carry on: 2946 / 831

Advancing to step 5:
When dividing 2946 by 831, we get 3 with a remainder of 453.
Put 3 as the next digit of the answer. 
Result so far: 103.0
If we take 2493 away from 2946, we end up with 453.
Take the next digit (9) from the dividend and append it to 453, then repeat: 4539 / 831

On to step 6:
4539 divided by 831 is 5 with a remainder of 384.
The number 5 becomes the next digit in our result. 
Result so far: 1035.0
If we take 4155 away from 4539, we end up with 384.
Append the next digit (7) from the dividend to 384 and continue with: 3847 / 831

Going ahead to step 7:
3847 divided by 831 is 4 with a remainder of 523.
Write down 4 as next digit of the result. 
Result so far: 10354.0
If we take 3324 away from 3847, we end up with 523.
Bring next digit (7) of the dividend behind the 523 and repeat the process: 5237 / 831

Let's proceed to step 8:
831 can be fit into 5237 6 times, resulting in a remainder of 251.
Record the quotient 6 as the next digit in the result. 
Result so far: 103546.0
The remainder is 251 after subtracting 4986 from 5237.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2510, and continue the process.

On to step 9:
If we divide 2510 by 831, we get 3 and a remainder of 17.
The number 3 becomes the next digit in our result. 
Result so far: 103546.3
If we subtract 2493 from 2510, we get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Moving on to step 10:
If we divide 170 by 831, we get 0 and a remainder of 170.
Put 0 as the next digit of the answer. 
Result so far: 103546.3
Subtracting 0 from 170 leaves us with 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Moving on to step 11:
831 can be fit into 1700 2 times, resulting in a remainder of 38.
Put 2 as the next digit of the answer. 
Result so far: 103546.302
If we subtract 1662 from 1700, we get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Moving on to step 12:
If we divide 380 by 831, we get 0 and a remainder of 380.
The number 0 becomes the next digit in our result. 
Result so far: 103546.302
If we subtract 0 from 380, we get 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Moving on to step 13:
If we divide 3800 by 831, we get 4 and a remainder of 476.
Put 4 as the next digit of the answer. 
Result so far: 103546.30204
Subtracting 3324 from 3800 leaves us with 476.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4760, and continue the process.

Going ahead to step 14:
831 can be fit into 4760 5 times, resulting in a remainder of 605.
Record the quotient 5 as the next digit in the result. 
Result so far: 103546.302045
Subtracting 4155 from 4760 leaves us with 605.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6050, and continue the process.

Let's proceed to step 15:
When dividing 6050 by 831, we get 7 with a remainder of 233.
Record the quotient 7 as the next digit in the result. 
Result so far: 103546.3020457
If we subtract 5817 from 6050, we get 233.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2330, and continue the process.

On to step 16:
If we divide 2330 by 831, we get 2 and a remainder of 668.
Use 2 as the next digit of our solution. 
Result so far: 103546.30204572
If we subtract 1662 from 2330, we get 668.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6680, and continue the process.

The final outcome is 103546.30204572, with a leftover of 6.68e-07.