9152049 divided by 686 
The aim is to understand the frequency of 686 in 9152049.

Step 1:
When dividing 9 by 686, we get 0 with a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Bring next digit (1) of the dividend behind the 9 and repeat the process: 91 / 686

Going ahead to step 2:
686 goes into 91 0 times with a remainder of 91.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 91, we get 91.
Include the next digit (5) from the dividend after 91, then repeat: 915 / 686

Moving on to step 3:
686 can be fit into 915 1 times, resulting in a remainder of 229.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 686 away from 915, we end up with 229.
Bring next digit (2) of the dividend behind the 229 and repeat the process: 2292 / 686

Advancing to step 4:
686 can be fit into 2292 3 times, resulting in a remainder of 234.
The next digit of our result is 3. 
Result so far: 13.0
Subtracting 2058 from 2292 leaves us with 234.
Append the next digit (0) from the dividend to 234 and continue with: 2340 / 686

Advancing to step 5:
686 can be fit into 2340 3 times, resulting in a remainder of 282.
Use 3 as the next digit of our solution. 
Result so far: 133.0
If we subtract 2058 from 2340, we get 282.
Take the next digit (4) from the dividend and append it to 282, then repeat: 2824 / 686

Let's proceed to step 6:
686 goes into 2824 4 times with a remainder of 80.
Write down 4 as next digit of the result. 
Result so far: 1334.0
Subtract 2744 from 2824 to get 80.
Bring next digit (9) of the dividend behind the 80 and repeat the process: 809 / 686

On to step 7:
686 can be fit into 809 1 times, resulting in a remainder of 123.
Use 1 as the next digit of our solution. 
Result so far: 13341.0
The remainder is 123 after subtracting 686 from 809.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1230, and continue the process.

Moving on to step 8:
1230 divided by 686 is 1 with a remainder of 544.
Write down 1 as next digit of the result. 
Result so far: 13341.1
Deduct 686 from 1230 and we're left with 544.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5440, and continue the process.

Going ahead to step 9:
686 can be fit into 5440 7 times, resulting in a remainder of 638.
Record the quotient 7 as the next digit in the result. 
Result so far: 13341.17
The remainder is 638 after subtracting 4802 from 5440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6380, and continue the process.

On to step 10:
686 goes into 6380 9 times with a remainder of 206.
Record the quotient 9 as the next digit in the result. 
Result so far: 13341.179
Deduct 6174 from 6380 and we're left with 206.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2060, and continue the process.

Moving on to step 11:
If we divide 2060 by 686, we get 3 and a remainder of 2.
Write down 3 as next digit of the result. 
Result so far: 13341.1793
If we subtract 2058 from 2060, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 12:
When dividing 20 by 686, we get 0 with a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 13341.1793
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 13:
If we divide 200 by 686, we get 0 and a remainder of 200.
Write down 0 as next digit of the result. 
Result so far: 13341.1793
Subtract 0 from 200 to get 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

The final outcome is 13341.1793, with a leftover of 2e-05.