We look at the division of 78149858 by 684 
The aim is to understand the frequency of 684 in 78149858.

Going ahead to step 1:
If we divide 7 by 684, we get 0 and a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Append the next digit (8) from the dividend to 7 and continue with: 78 / 684

On to step 2:
684 can be fit into 78 0 times, resulting in a remainder of 78.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 78, we get 78.
Append the next digit (1) from the dividend to 78 and continue with: 781 / 684

Step 3:
781 divided by 684 is 1 with a remainder of 97.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 97 after subtracting 684 from 781.
Grab the next digit (4) from the dividend, add it to 97, then carry on: 974 / 684

Advancing to step 4:
The number 684 fits into 974 1 times, leaving a remainder of 290.
Put 1 as the next digit of the answer. 
Result so far: 11.0
Subtracting 684 from 974 leaves us with 290.
Grab the next digit (9) from the dividend, add it to 290, then carry on: 2909 / 684

Moving on to step 5:
If we divide 2909 by 684, we get 4 and a remainder of 173.
The number 4 becomes the next digit in our result. 
Result so far: 114.0
If we subtract 2736 from 2909, we get 173.
Bring next digit (8) of the dividend behind the 173 and repeat the process: 1738 / 684

Going ahead to step 6:
The number 684 fits into 1738 2 times, leaving a remainder of 370.
Record the quotient 2 as the next digit in the result. 
Result so far: 1142.0
If we subtract 1368 from 1738, we get 370.
Bring next digit (5) of the dividend behind the 370 and repeat the process: 3705 / 684

Going ahead to step 7:
If we divide 3705 by 684, we get 5 and a remainder of 285.
Put 5 as the next digit of the answer. 
Result so far: 11425.0
Subtracting 3420 from 3705 leaves us with 285.
Fetch the next digit (8) from the dividend, attach it to 285 and continue: 2858 / 684

Moving on to step 8:
684 goes into 2858 4 times with a remainder of 122.
The number 4 becomes the next digit in our result. 
Result so far: 114254.0
Subtracting 2736 from 2858 leaves us with 122.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

On to step 9:
684 goes into 1220 1 times with a remainder of 536.
Write down 1 as next digit of the result. 
Result so far: 114254.1
If we subtract 684 from 1220, we get 536.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5360, and continue the process.

Step 10:
When dividing 5360 by 684, we get 7 with a remainder of 572.
The number 7 becomes the next digit in our result. 
Result so far: 114254.17
Subtracting 4788 from 5360 leaves us with 572.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5720, and continue the process.

Advancing to step 11:
If we divide 5720 by 684, we get 8 and a remainder of 248.
The number 8 becomes the next digit in our result. 
Result so far: 114254.178
If we subtract 5472 from 5720, we get 248.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

On to step 12:
684 goes into 2480 3 times with a remainder of 428.
Put 3 as the next digit of the answer. 
Result so far: 114254.1783
If we subtract 2052 from 2480, we get 428.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4280, and continue the process.

Advancing to step 13:
The number 684 fits into 4280 6 times, leaving a remainder of 176.
Use 6 as the next digit of our solution. 
Result so far: 114254.17836
If we subtract 4104 from 4280, we get 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

Going ahead to step 14:
684 can be fit into 1760 2 times, resulting in a remainder of 392.
The next digit of our result is 2. 
Result so far: 114254.178362
Subtracting 1368 from 1760 leaves us with 392.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3920, and continue the process.

Step 15:
3920 divided by 684 is 5 with a remainder of 500.
Write down 5 as next digit of the result. 
Result so far: 114254.1783625
If we subtract 3420 from 3920, we get 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

On to step 16:
If we divide 5000 by 684, we get 7 and a remainder of 212.
The next digit of our result is 7. 
Result so far: 114254.17836257
If we take 4788 away from 5000, we end up with 212.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2120, and continue the process.

Our division results in 114254.17836257 with a remaining 2.12e-07.