We look at the division of 56472542 by 686 
The aim is to understand the frequency of 686 in 56472542.

Let's proceed to step 1:
5 divided by 686 is 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Include the next digit (6) from the dividend after 5, then repeat: 56 / 686

Step 2:
686 goes into 56 0 times with a remainder of 56.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 56 to get 56.
Bring next digit (4) of the dividend behind the 56 and repeat the process: 564 / 686

On to step 3:
The number 686 fits into 564 0 times, leaving a remainder of 564.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 564 leaves us with 564.
Take the next digit (7) from the dividend and append it to 564, then repeat: 5647 / 686

Step 4:
The number 686 fits into 5647 8 times, leaving a remainder of 159.
Put 8 as the next digit of the answer. 
Result so far: 8.0
Subtract 5488 from 5647 to get 159.
Take the next digit (2) from the dividend and append it to 159, then repeat: 1592 / 686

Going ahead to step 5:
If we divide 1592 by 686, we get 2 and a remainder of 220.
Write down 2 as next digit of the result. 
Result so far: 82.0
Subtract 1372 from 1592 to get 220.
Bring next digit (5) of the dividend behind the 220 and repeat the process: 2205 / 686

Going ahead to step 6:
2205 divided by 686 is 3 with a remainder of 147.
Use 3 as the next digit of our solution. 
Result so far: 823.0
If we subtract 2058 from 2205, we get 147.
Include the next digit (4) from the dividend after 147, then repeat: 1474 / 686

On to step 7:
If we divide 1474 by 686, we get 2 and a remainder of 102.
Record the quotient 2 as the next digit in the result. 
Result so far: 8232.0
Subtracting 1372 from 1474 leaves us with 102.
Take the next digit (2) from the dividend and append it to 102, then repeat: 1022 / 686

Advancing to step 8:
686 can be fit into 1022 1 times, resulting in a remainder of 336.
Put 1 as the next digit of the answer. 
Result so far: 82321.0
Subtracting 686 from 1022 leaves us with 336.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3360, and continue the process.

On to step 9:
686 can be fit into 3360 4 times, resulting in a remainder of 616.
Put 4 as the next digit of the answer. 
Result so far: 82321.4
Deduct 2744 from 3360 and we're left with 616.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6160, and continue the process.

Moving on to step 10:
When dividing 6160 by 686, we get 8 with a remainder of 672.
Record the quotient 8 as the next digit in the result. 
Result so far: 82321.48
If we take 5488 away from 6160, we end up with 672.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6720, and continue the process.

On to step 11:
6720 divided by 686 is 9 with a remainder of 546.
The next digit of our result is 9. 
Result so far: 82321.489
Subtracting 6174 from 6720 leaves us with 546.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5460, and continue the process.

Moving on to step 12:
When dividing 5460 by 686, we get 7 with a remainder of 658.
Write down 7 as next digit of the result. 
Result so far: 82321.4897
Subtracting 4802 from 5460 leaves us with 658.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6580, and continue the process.

Going ahead to step 13:
If we divide 6580 by 686, we get 9 and a remainder of 406.
The next digit of our result is 9. 
Result so far: 82321.48979
Subtract 6174 from 6580 to get 406.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4060, and continue the process.

Let's proceed to step 14:
The number 686 fits into 4060 5 times, leaving a remainder of 630.
The number 5 becomes the next digit in our result. 
Result so far: 82321.489795
If we subtract 3430 from 4060, we get 630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6300, and continue the process.

Let's proceed to step 15:
The number 686 fits into 6300 9 times, leaving a remainder of 126.
Put 9 as the next digit of the answer. 
Result so far: 82321.4897959
If we subtract 6174 from 6300, we get 126.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

On to step 16:
When dividing 1260 by 686, we get 1 with a remainder of 574.
Write down 1 as next digit of the result. 
Result so far: 82321.48979591
Subtract 686 from 1260 to get 574.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5740, and continue the process.

After the division, we end up with 82321.48979591 and a remainder of 5.74e-07.