We look at the division of 810025 by 68 
The aim is to understand the frequency of 68 in 810025.

Going ahead to step 1:
When dividing 8 by 68, we get 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 68

Going ahead to step 2:
81 divided by 68 is 1 with a remainder of 13.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 68 away from 81, we end up with 13.
Take the next digit (0) from the dividend and append it to 13, then repeat: 130 / 68

Going ahead to step 3:
68 goes into 130 1 times with a remainder of 62.
Use 1 as the next digit of our solution. 
Result so far: 11.0
Subtracting 68 from 130 leaves us with 62.
Fetch the next digit (0) from the dividend, attach it to 62 and continue: 620 / 68

Advancing to step 4:
When dividing 620 by 68, we get 9 with a remainder of 8.
Put 9 as the next digit of the answer. 
Result so far: 119.0
Subtract 612 from 620 to get 8.
Fetch the next digit (2) from the dividend, attach it to 8 and continue: 82 / 68

Moving on to step 5:
The number 68 fits into 82 1 times, leaving a remainder of 14.
The next digit of our result is 1. 
Result so far: 1191.0
Subtract 68 from 82 to get 14.
Grab the next digit (5) from the dividend, add it to 14, then carry on: 145 / 68

On to step 6:
68 goes into 145 2 times with a remainder of 9.
The next digit of our result is 2. 
Result so far: 11912.0
Deduct 136 from 145 and we're left with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Step 7:
68 can be fit into 90 1 times, resulting in a remainder of 22.
The number 1 becomes the next digit in our result. 
Result so far: 11912.1
If we take 68 away from 90, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 8:
220 divided by 68 is 3 with a remainder of 16.
Use 3 as the next digit of our solution. 
Result so far: 11912.13
If we subtract 204 from 220, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 9:
The number 68 fits into 160 2 times, leaving a remainder of 24.
The number 2 becomes the next digit in our result. 
Result so far: 11912.132
Deduct 136 from 160 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 10:
The number 68 fits into 240 3 times, leaving a remainder of 36.
Use 3 as the next digit of our solution. 
Result so far: 11912.1323
Deduct 204 from 240 and we're left with 36.
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 11:
When dividing 360 by 68, we get 5 with a remainder of 20.
The number 5 becomes the next digit in our result. 
Result so far: 11912.13235
If we subtract 340 from 360, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 12:
200 divided by 68 is 2 with a remainder of 64.
Use 2 as the next digit of our solution. 
Result so far: 11912.132352
Subtracting 136 from 200 leaves us with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Advancing to step 13:
If we divide 640 by 68, we get 9 and a remainder of 28.
Record the quotient 9 as the next digit in the result. 
Result so far: 11912.1323529
Subtracting 612 from 640 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 14:
68 goes into 280 4 times with a remainder of 8.
Put 4 as the next digit of the answer. 
Result so far: 11912.13235294
If we take 272 away from 280, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

After the division, we end up with 11912.13235294 and a remainder of 8e-09.