We're dividing 630636 by 34 
The aim is to understand the frequency of 34 in 630636.

Step 1:
6 divided by 34 is 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Grab the next digit (3) from the dividend, add it to 6, then carry on: 63 / 34

Step 2:
63 divided by 34 is 1 with a remainder of 29.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 34 from 63 and we're left with 29.
Grab the next digit (0) from the dividend, add it to 29, then carry on: 290 / 34

Moving on to step 3:
290 divided by 34 is 8 with a remainder of 18.
Use 8 as the next digit of our solution. 
Result so far: 18.0
If we subtract 272 from 290, we get 18.
Append the next digit (6) from the dividend to 18 and continue with: 186 / 34

Advancing to step 4:
When dividing 186 by 34, we get 5 with a remainder of 16.
Use 5 as the next digit of our solution. 
Result so far: 185.0
The remainder is 16 after subtracting 170 from 186.
Take the next digit (3) from the dividend and append it to 16, then repeat: 163 / 34

On to step 5:
The number 34 fits into 163 4 times, leaving a remainder of 27.
Put 4 as the next digit of the answer. 
Result so far: 1854.0
If we take 136 away from 163, we end up with 27.
Include the next digit (6) from the dividend after 27, then repeat: 276 / 34

Moving on to step 6:
34 goes into 276 8 times with a remainder of 4.
Put 8 as the next digit of the answer. 
Result so far: 18548.0
Deduct 272 from 276 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 7:
When dividing 40 by 34, we get 1 with a remainder of 6.
Write down 1 as next digit of the result. 
Result so far: 18548.1
The remainder is 6 after subtracting 34 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 8:
The number 34 fits into 60 1 times, leaving a remainder of 26.
The next digit of our result is 1. 
Result so far: 18548.11
Deduct 34 from 60 and we're left with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

The final result is 18548.11 with a remainder of 0.026.