Let's divide 97831949 by 686
The aim is to understand the frequency of 686 in 97831949.

Step 1:
686 goes into 9 0 times with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Bring next digit (7) of the dividend behind the 9 and repeat the process: 97 / 686

Moving on to step 2:
97 divided by 686 is 0 with a remainder of 97.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 97, we end up with 97.
Bring next digit (8) of the dividend behind the 97 and repeat the process: 978 / 686

Going ahead to step 3:
If we divide 978 by 686, we get 1 and a remainder of 292.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 686 from 978 and we're left with 292.
Include the next digit (3) from the dividend after 292, then repeat: 2923 / 686

Step 4:
When dividing 2923 by 686, we get 4 with a remainder of 179.
The number 4 becomes the next digit in our result. 
Result so far: 14.0
The remainder is 179 after subtracting 2744 from 2923.
Fetch the next digit (1) from the dividend, attach it to 179 and continue: 1791 / 686

Let's proceed to step 5:
686 goes into 1791 2 times with a remainder of 419.
Put 2 as the next digit of the answer. 
Result so far: 142.0
Deduct 1372 from 1791 and we're left with 419.
Bring next digit (9) of the dividend behind the 419 and repeat the process: 4199 / 686

Step 6:
686 goes into 4199 6 times with a remainder of 83.
The number 6 becomes the next digit in our result. 
Result so far: 1426.0
If we take 4116 away from 4199, we end up with 83.
Include the next digit (4) from the dividend after 83, then repeat: 834 / 686

Let's proceed to step 7:
834 divided by 686 is 1 with a remainder of 148.
The number 1 becomes the next digit in our result. 
Result so far: 14261.0
Subtract 686 from 834 to get 148.
Fetch the next digit (9) from the dividend, attach it to 148 and continue: 1489 / 686

Step 8:
1489 divided by 686 is 2 with a remainder of 117.
Use 2 as the next digit of our solution. 
Result so far: 142612.0
Subtracting 1372 from 1489 leaves us 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.

Step 9:
1170 divided by 686 is 1 with a remainder of 484.
The number 1 becomes the next digit in our result. 
Result so far: 142612.1
If we subtract 686 from 1170, we get 484.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4840, and continue the process.

Moving on to step 10:
If we divide 4840 by 686, we get 7 and a remainder of 38.
Write down 7 as next digit of the result. 
Result so far: 142612.17
The remainder is 38 after subtracting 4802 from 4840.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Going ahead to step 11:
If we divide 380 by 686, we get 0 and a remainder of 380.
Put 0 as the next digit of the answer. 
Result so far: 142612.17
Subtracting 0 from 380 leaves us with 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 12:
3800 divided by 686 is 5 with a remainder of 370.
Put 5 as the next digit of the answer. 
Result so far: 142612.1705
Deduct 3430 from 3800 and we're left with 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

Moving on to step 13:
686 can be fit into 3700 5 times, resulting in a remainder of 270.
Put 5 as the next digit of the answer. 
Result so far: 142612.17055
Subtract 3430 from 3700 to get 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

The final outcome is 142612.17055, with a leftover of 0.00027.