We look at the division of 19358691 by 684 
The aim is to understand the frequency of 684 in 19358691.

On to step 1:
1 divided by 684 is 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Grab the next digit (9) from the dividend, add it to 1, then carry on: 19 / 684

Let's proceed to step 2:
When dividing 19 by 684, we get 0 with a remainder of 19.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 19, we end up with 19.
Bring next digit (3) of the dividend behind the 19 and repeat the process: 193 / 684

On to step 3:
684 goes into 193 0 times with a remainder of 193.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 193 leaves us with 193.
Take the next digit (5) from the dividend and append it to 193, then repeat: 1935 / 684

Let's proceed to step 4:
684 goes into 1935 2 times with a remainder of 567.
The next digit of our result is 2. 
Result so far: 2.0
If we take 1368 away from 1935, we end up with 567.
Fetch the next digit (8) from the dividend, attach it to 567 and continue: 5678 / 684

On to step 5:
684 can be fit into 5678 8 times, resulting in a remainder of 206.
Put 8 as the next digit of the answer. 
Result so far: 28.0
Deduct 5472 from 5678 and we're left with 206.
Bring next digit (6) of the dividend behind the 206 and repeat the process: 2066 / 684

Step 6:
If we divide 2066 by 684, we get 3 and a remainder of 14.
Use 3 as the next digit of our solution. 
Result so far: 283.0
Subtracting 2052 from 2066 leaves us with 14.
Include the next digit (9) from the dividend after 14, then repeat: 149 / 684

On to step 7:
When dividing 149 by 684, we get 0 with a remainder of 149.
Use 0 as the next digit of our solution. 
Result so far: 2830.0
Subtract 0 from 149 to get 149.
Grab the next digit (1) from the dividend, add it to 149, then carry on: 1491 / 684

On to step 8:
684 can be fit into 1491 2 times, resulting in a remainder of 123.
The number 2 becomes the next digit in our result. 
Result so far: 28302.0
The remainder is 123 after subtracting 1368 from 1491.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1230, and continue the process.

Going ahead to step 9:
684 can be fit into 1230 1 times, resulting in a remainder of 546.
Write down 1 as next digit of the result. 
Result so far: 28302.1
Subtract 684 from 1230 to get 546.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5460, and continue the process.

Going ahead to step 10:
684 goes into 5460 7 times with a remainder of 672.
The number 7 becomes the next digit in our result. 
Result so far: 28302.17
Subtracting 4788 from 5460 leaves us 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.

Step 11:
The number 684 fits into 6720 9 times, leaving a remainder of 564.
Write down 9 as next digit of the result. 
Result so far: 28302.179
Subtracting 6156 from 6720 leaves us with 564.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5640, and continue the process.

Advancing to step 12:
If we divide 5640 by 684, we get 8 and a remainder of 168.
Use 8 as the next digit of our solution. 
Result so far: 28302.1798
If we subtract 5472 from 5640, we get 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

Step 13:
684 can be fit into 1680 2 times, resulting in a remainder of 312.
Put 2 as the next digit of the answer. 
Result so far: 28302.17982
Subtracting 1368 from 1680 leaves us with 312.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3120, and continue the process.

Advancing to step 14:
If we divide 3120 by 684, we get 4 and a remainder of 384.
Write down 4 as next digit of the result. 
Result so far: 28302.179824
The remainder is 384 after subtracting 2736 from 3120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3840, and continue the process.

Step 15:
When dividing 3840 by 684, we get 5 with a remainder of 420.
Put 5 as the next digit of the answer. 
Result so far: 28302.1798245
Subtracting 3420 from 3840 leaves us with 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Let's proceed to step 16:
The number 684 fits into 4200 6 times, leaving a remainder of 96.
The number 6 becomes the next digit in our result. 
Result so far: 28302.17982456
Subtract 4104 from 4200 to get 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Our division results in 28302.17982456 with a remaining 9.6e-08.