We look at the division of 19632186 by 686 
The aim is to understand the frequency of 686 in 19632186.

Advancing to step 1:
686 goes into 1 0 times with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Take the next digit (9) from the dividend and append it to 1, then repeat: 19 / 686

Advancing to step 2:
686 can be fit into 19 0 times, resulting in a remainder of 19.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 19 and we're left with 19.
Take the next digit (6) from the dividend and append it to 19, then repeat: 196 / 686

On to step 3:
When dividing 196 by 686, we get 0 with a remainder of 196.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 196, we get 196.
Grab the next digit (3) from the dividend, add it to 196, then carry on: 1963 / 686

Going ahead to step 4:
1963 divided by 686 is 2 with a remainder of 591.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we subtract 1372 from 1963, we get 591.
Include the next digit (2) from the dividend after 591, then repeat: 5912 / 686

Let's proceed to step 5:
5912 divided by 686 is 8 with a remainder of 424.
Put 8 as the next digit of the answer. 
Result so far: 28.0
The remainder is 424 after subtracting 5488 from 5912.
Fetch the next digit (1) from the dividend, attach it to 424 and continue: 4241 / 686

Step 6:
The number 686 fits into 4241 6 times, leaving a remainder of 125.
Write down 6 as next digit of the result. 
Result so far: 286.0
The remainder is 125 after subtracting 4116 from 4241.
Include the next digit (8) from the dividend after 125, then repeat: 1258 / 686

Moving on to step 7:
If we divide 1258 by 686, we get 1 and a remainder of 572.
Write down 1 as next digit of the result. 
Result so far: 2861.0
Subtracting 686 from 1258 leaves us with 572.
Include the next digit (6) from the dividend after 572, then repeat: 5726 / 686

Step 8:
5726 divided by 686 is 8 with a remainder of 238.
The number 8 becomes the next digit in our result. 
Result so far: 28618.0
If we take 5488 away from 5726, we end up with 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

Step 9:
2380 divided by 686 is 3 with a remainder of 322.
Use 3 as the next digit of our solution. 
Result so far: 28618.3
If we take 2058 away from 2380, we end up with 322.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3220, and continue the process.

On to step 10:
3220 divided by 686 is 4 with a remainder of 476.
The number 4 becomes the next digit in our result. 
Result so far: 28618.34
If we take 2744 away from 3220, we end up 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.

Let's proceed to step 11:
686 goes into 4760 6 times with a remainder of 644.
Use 6 as the next digit of our solution. 
Result so far: 28618.346
If we subtract 4116 from 4760, we get 644.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6440, and continue the process.

On to step 12:
686 can be fit into 6440 9 times, resulting in a remainder of 266.
Use 9 as the next digit of our solution. 
Result so far: 28618.3469
Deduct 6174 from 6440 and we're left with 266.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2660, and continue the process.

Moving on to step 13:
If we divide 2660 by 686, we get 3 and a remainder of 602.
Put 3 as the next digit of the answer. 
Result so far: 28618.34693
Subtracting 2058 from 2660 leaves us with 602.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6020, and continue the process.

Moving on to step 14:
When dividing 6020 by 686, we get 8 with a remainder of 532.
The next digit of our result is 8. 
Result so far: 28618.346938
Deduct 5488 from 6020 and we're left with 532.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5320, and continue the process.

Let's proceed to step 15:
When dividing 5320 by 686, we get 7 with a remainder of 518.
Write down 7 as next digit of the result. 
Result so far: 28618.3469387
The remainder is 518 after subtracting 4802 from 5320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5180, and continue the process.

On to step 16:
5180 divided by 686 is 7 with a remainder of 378.
Put 7 as the next digit of the answer. 
Result so far: 28618.34693877
The remainder is 378 after subtracting 4802 from 5180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3780, and continue the process.

The quotient of the division is 28618.34693877, and the remainder is 3.78e-07.