We look at the division of 668872 by 34 
The aim is to understand the frequency of 34 in 668872.

Going ahead to step 1:
When dividing 6 by 34, we get 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 34

Going ahead to step 2:
34 can be fit into 66 1 times, resulting in a remainder of 32.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 34 from 66 leaves us with 32.
Take the next digit (8) from the dividend and append it to 32, then repeat: 328 / 34

Going ahead to step 3:
If we divide 328 by 34, we get 9 and a remainder of 22.
Use 9 as the next digit of our solution. 
Result so far: 19.0
Deduct 306 from 328 and we're left with 22.
Take the next digit (8) from the dividend and append it to 22, then repeat: 228 / 34

Let's proceed to step 4:
The number 34 fits into 228 6 times, leaving a remainder of 24.
The number 6 becomes the next digit in our result. 
Result so far: 196.0
Subtracting 204 from 228 leaves us with 24.
Include the next digit (7) from the dividend after 24, then repeat: 247 / 34

Step 5:
The number 34 fits into 247 7 times, leaving a remainder of 9.
The next digit of our result is 7. 
Result so far: 1967.0
Subtract 238 from 247 to get 9.
Grab the next digit (2) from the dividend, add it to 9, then carry on: 92 / 34

Advancing to step 6:
92 divided by 34 is 2 with a remainder of 24.
Record the quotient 2 as the next digit in the result. 
Result so far: 19672.0
Deduct 68 from 92 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.

Going ahead to step 7:
When dividing 240 by 34, we get 7 with a remainder of 2.
The next digit of our result is 7. 
Result so far: 19672.7
If we take 238 away from 240, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 8:
20 divided by 34 is 0 with a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 19672.7
The remainder is 20 after subtracting 0 from 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 9:
34 goes into 200 5 times with a remainder of 30.
The number 5 becomes the next digit in our result. 
Result so far: 19672.705
If we subtract 170 from 200, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 10:
34 can be fit into 300 8 times, resulting in a remainder of 28.
The number 8 becomes the next digit in our result. 
Result so far: 19672.7058
Subtracting 272 from 300 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 11:
The number 34 fits into 280 8 times, leaving a remainder of 8.
Use 8 as the next digit of our solution. 
Result so far: 19672.70588
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.

The final outcome is 19672.70588, with a leftover of 8e-06.