We look at the division of 306753 by 17 
The aim is to understand the frequency of 17 in 306753.

On to step 1:
17 can be fit into 3 0 times, resulting in a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Append the next digit (0) from the dividend to 3 and continue with: 30 / 17

On to step 2:
When dividing 30 by 17, we get 1 with a remainder of 13.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 17 from 30, we get 13.
Fetch the next digit (6) from the dividend, attach it to 13 and continue: 136 / 17

On to step 3:
When dividing 136 by 17, we get 8 with a remainder of 0.
Put 8 as the next digit of the answer. 
Result so far: 18.0
The remainder is 0 after subtracting 136 from 136.
Append the next digit (7) from the dividend to 0 and continue with: 7 / 17

Advancing to step 4:
17 goes into 7 0 times with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 180.0
Deduct 0 from 7 and we're left with 7.
Append the next digit (5) from the dividend to 7 and continue with: 75 / 17

Step 5:
17 goes into 75 4 times with a remainder of 7.
Use 4 as the next digit of our solution. 
Result so far: 1804.0
If we subtract 68 from 75, we get 7.
Take the next digit (3) from the dividend and append it to 7, then repeat: 73 / 17

Going ahead to step 6:
17 goes into 73 4 times with a remainder of 5.
Put 4 as the next digit of the answer. 
Result so far: 18044.0
Subtracting 68 from 73 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 7:
17 can be fit into 50 2 times, resulting in a remainder of 16.
Write down 2 as next digit of the result. 
Result so far: 18044.2
Deduct 34 from 50 and we're left with 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 8:
If we divide 160 by 17, we get 9 and a remainder of 7.
The next digit of our result is 9. 
Result so far: 18044.29
Deduct 153 from 160 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 9:
17 can be fit into 70 4 times, resulting in a remainder of 2.
The number 4 becomes the next digit in our result. 
Result so far: 18044.294
Deduct 68 from 70 and we're left 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.

Advancing to step 10:
The number 17 fits into 20 1 times, leaving a remainder of 3.
Write down 1 as next digit of the result. 
Result so far: 18044.2941
Subtract 17 from 20 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 11:
17 can be fit into 30 1 times, resulting in a remainder of 13.
Put 1 as the next digit of the answer. 
Result so far: 18044.29411
Deduct 17 from 30 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

After the division, we end up with 18044.29411 and a remainder of 1.3e-05.