We look at the division of 840683 by 68 
The aim is to understand the frequency of 68 in 840683.

On to step 1:
8 divided by 68 is 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Grab the next digit (4) from the dividend, add it to 8, then carry on: 84 / 68

Let's proceed to step 2:
84 divided by 68 is 1 with a remainder of 16.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 16 after subtracting 68 from 84.
Append the next digit (0) from the dividend to 16 and continue with: 160 / 68

Advancing to step 3:
68 can be fit into 160 2 times, resulting in a remainder of 24.
Put 2 as the next digit of the answer. 
Result so far: 12.0
If we subtract 136 from 160, we get 24.
Include the next digit (6) from the dividend after 24, then repeat: 246 / 68

Let's proceed to step 4:
When dividing 246 by 68, we get 3 with a remainder of 42.
Write down 3 as next digit of the result. 
Result so far: 123.0
If we take 204 away from 246, we end up with 42.
Fetch the next digit (8) from the dividend, attach it to 42 and continue: 428 / 68

Advancing to step 5:
68 goes into 428 6 times with a remainder of 20.
Record the quotient 6 as the next digit in the result. 
Result so far: 1236.0
The remainder is 20 after subtracting 408 from 428.
Include the next digit (3) from the dividend after 20, then repeat: 203 / 68

Let's proceed to step 6:
68 can be fit into 203 2 times, resulting in a remainder of 67.
The next digit of our result is 2. 
Result so far: 12362.0
Deduct 136 from 203 and we're left with 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Advancing to step 7:
If we divide 670 by 68, we get 9 and a remainder of 58.
Put 9 as the next digit of the answer. 
Result so far: 12362.9
The remainder is 58 after subtracting 612 from 670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Going ahead to step 8:
If we divide 580 by 68, we get 8 and a remainder of 36.
Put 8 as the next digit of the answer. 
Result so far: 12362.98
The remainder is 36 after subtracting 544 from 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Advancing to step 9:
If we divide 360 by 68, we get 5 and a remainder of 20.
Use 5 as the next digit of our solution. 
Result so far: 12362.985
The remainder is 20 after subtracting 340 from 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 10:
200 divided by 68 is 2 with a remainder of 64.
Use 2 as the next digit of our solution. 
Result so far: 12362.9852
Subtract 136 from 200 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Let's proceed to step 11:
640 divided by 68 is 9 with a remainder of 28.
The next digit of our result is 9. 
Result so far: 12362.98529
If we subtract 612 from 640, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Advancing to step 12:
68 can be fit into 280 4 times, resulting in a remainder of 8.
Use 4 as the next digit of our solution. 
Result so far: 12362.985294
If we subtract 272 from 280, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 13:
68 can be fit into 80 1 times, resulting in a remainder of 12.
Write down 1 as next digit of the result. 
Result so far: 12362.9852941
Deduct 68 from 80 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 14:
If we divide 120 by 68, we get 1 and a remainder of 52.
Use 1 as the next digit of our solution. 
Result so far: 12362.98529411
Deduct 68 from 120 and we're left with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

After the division, we end up with 12362.98529411 and a remainder of 5.2e-08.