We divide 816900 by 68
The aim is to understand the frequency of 68 in 816900.

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
Deduct 0 from 8 and we're left with 8.
Include the next digit (1) from the dividend after 8, then repeat: 81 / 68

Moving on to step 2:
When dividing 81 by 68, we get 1 with a remainder of 13.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 68 from 81 to get 13.
Take the next digit (6) from the dividend and append it to 13, then repeat: 136 / 68

Let's proceed to step 3:
68 goes into 136 2 times with a remainder of 0.
Put 2 as the next digit of the answer. 
Result so far: 12.0
The remainder is 0 after subtracting 136 from 136.
Bring next digit (9) of the dividend behind the 0 and repeat the process: 9 / 68

Going ahead to step 4:
68 can be fit into 9 0 times, resulting in a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 120.0
Deduct 0 from 9 and we're left with 9.
Bring next digit (0) of the dividend behind the 9 and repeat the process: 90 / 68

On to step 5:
68 goes into 90 1 times with a remainder of 22.
Use 1 as the next digit of our solution. 
Result so far: 1201.0
Subtract 68 from 90 to get 22.
Grab the next digit (0) from the dividend, add it to 22, then carry on: 220 / 68

Moving on to step 6:
68 can be fit into 220 3 times, resulting in a remainder of 16.
Put 3 as the next digit of the answer. 
Result so far: 12013.0
The remainder is 16 after subtracting 204 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 7:
160 divided by 68 is 2 with a remainder of 24.
The next digit of our result is 2. 
Result so far: 12013.2
Subtracting 136 from 160 leaves us 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.

Moving on to step 8:
If we divide 240 by 68, we get 3 and a remainder of 36.
Record the quotient 3 as the next digit in the result. 
Result so far: 12013.23
Subtracting 204 from 240 leaves us 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.

Step 9:
The number 68 fits into 360 5 times, leaving a remainder of 20.
Record the quotient 5 as the next digit in the result. 
Result so far: 12013.235
Subtracting 340 from 360 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 10:
200 divided by 68 is 2 with a remainder of 64.
The next digit of our result is 2. 
Result so far: 12013.2352
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.

On to step 11:
68 goes into 640 9 times with a remainder of 28.
Record the quotient 9 as the next digit in the result. 
Result so far: 12013.23529
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.

Let's proceed to step 12:
280 divided by 68 is 4 with a remainder of 8.
Put 4 as the next digit of the answer. 
Result so far: 12013.235294
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.

Moving on to step 13:
If we divide 80 by 68, we get 1 and a remainder of 12.
Record the quotient 1 as the next digit in the result. 
Result so far: 12013.2352941
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:
120 divided by 68 is 1 with a remainder of 52.
The number 1 becomes the next digit in our result. 
Result so far: 12013.23529411
Subtracting 68 from 120 leaves us 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.

The final result is 12013.23529411 with a remainder of 5.2e-08.