We're dividing 70615319 by 831 
The aim is to understand the frequency of 831 in 70615319.

Let's proceed to step 1:
If we divide 7 by 831, we get 0 and a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Take the next digit (0) from the dividend and append it to 7, then repeat: 70 / 831

Step 2:
If we divide 70 by 831, we get 0 and a remainder of 70.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 70, we get 70.
Take the next digit (6) from the dividend and append it to 70, then repeat: 706 / 831

Advancing to step 3:
When dividing 706 by 831, we get 0 with a remainder of 706.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 706 leaves us with 706.
Append the next digit (1) from the dividend to 706 and continue with: 7061 / 831

Going ahead to step 4:
The number 831 fits into 7061 8 times, leaving a remainder of 413.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
If we take 6648 away from 7061, we end up with 413.
Fetch the next digit (5) from the dividend, attach it to 413 and continue: 4135 / 831

Step 5:
831 can be fit into 4135 4 times, resulting in a remainder of 811.
Write down 4 as next digit of the result. 
Result so far: 84.0
The remainder is 811 after subtracting 3324 from 4135.
Include the next digit (3) from the dividend after 811, then repeat: 8113 / 831

Moving on to step 6:
8113 divided by 831 is 9 with a remainder of 634.
Use 9 as the next digit of our solution. 
Result so far: 849.0
Deduct 7479 from 8113 and we're left with 634.
Append the next digit (1) from the dividend to 634 and continue with: 6341 / 831

Advancing to step 7:
When dividing 6341 by 831, we get 7 with a remainder of 524.
Write down 7 as next digit of the result. 
Result so far: 8497.0
Deduct 5817 from 6341 and we're left with 524.
Take the next digit (9) from the dividend and append it to 524, then repeat: 5249 / 831

Advancing to step 8:
831 can be fit into 5249 6 times, resulting in a remainder of 263.
Record the quotient 6 as the next digit in the result. 
Result so far: 84976.0
Deduct 4986 from 5249 and we're left with 263.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2630, and continue the process.

Step 9:
If we divide 2630 by 831, we get 3 and a remainder of 137.
Use 3 as the next digit of our solution. 
Result so far: 84976.3
If we take 2493 away from 2630, we end up with 137.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1370, and continue the process.

Moving on to step 10:
1370 divided by 831 is 1 with a remainder of 539.
Use 1 as the next digit of our solution. 
Result so far: 84976.31
Subtract 831 from 1370 to get 539.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5390, and continue the process.

On to step 11:
831 can be fit into 5390 6 times, resulting in a remainder of 404.
The number 6 becomes the next digit in our result. 
Result so far: 84976.316
If we take 4986 away from 5390, we end up with 404.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4040, and continue the process.

Let's proceed to step 12:
If we divide 4040 by 831, we get 4 and a remainder of 716.
The next digit of our result is 4. 
Result so far: 84976.3164
Deduct 3324 from 4040 and we're left with 716.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7160, and continue the process.

Going ahead to step 13:
When dividing 7160 by 831, we get 8 with a remainder of 512.
The next digit of our result is 8. 
Result so far: 84976.31648
The remainder is 512 after subtracting 6648 from 7160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5120, and continue the process.

Going ahead to step 14:
The number 831 fits into 5120 6 times, leaving a remainder of 134.
Write down 6 as next digit of the result. 
Result so far: 84976.316486
Deduct 4986 from 5120 and we're left with 134.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1340, and continue the process.

Going ahead to step 15:
The number 831 fits into 1340 1 times, leaving a remainder of 509.
Record the quotient 1 as the next digit in the result. 
Result so far: 84976.3164861
Subtracting 831 from 1340 leaves us with 509.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5090, and continue the process.

Advancing to step 16:
831 goes into 5090 6 times with a remainder of 104.
The next digit of our result is 6. 
Result so far: 84976.31648616
If we take 4986 away from 5090, we end up with 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Our division results in 84976.31648616 with a remaining 1.04e-07.