We're dividing 369351 by 17 
The aim is to understand the frequency of 17 in 369351.

Step 1:
17 goes into 3 0 times with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Include the next digit (6) from the dividend after 3, then repeat: 36 / 17

Moving on to step 2:
17 goes into 36 2 times with a remainder of 2.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we take 34 away from 36, we end up with 2.
Take the next digit (9) from the dividend and append it to 2, then repeat: 29 / 17

Step 3:
If we divide 29 by 17, we get 1 and a remainder of 12.
Use 1 as the next digit of our solution. 
Result so far: 21.0
If we subtract 17 from 29, we get 12.
Bring next digit (3) of the dividend behind the 12 and repeat the process: 123 / 17

Let's proceed to step 4:
17 goes into 123 7 times with a remainder of 4.
Use 7 as the next digit of our solution. 
Result so far: 217.0
Subtracting 119 from 123 leaves us with 4.
Take the next digit (5) from the dividend and append it to 4, then repeat: 45 / 17

Step 5:
When dividing 45 by 17, we get 2 with a remainder of 11.
Put 2 as the next digit of the answer. 
Result so far: 2172.0
If we subtract 34 from 45, we get 11.
Include the next digit (1) from the dividend after 11, then repeat: 111 / 17

Moving on to step 6:
17 can be fit into 111 6 times, resulting in a remainder of 9.
Put 6 as the next digit of the answer. 
Result so far: 21726.0
Subtract 102 from 111 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Going ahead to step 7:
17 can be fit into 90 5 times, resulting in a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 21726.5
Subtracting 85 from 90 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.

Step 8:
The number 17 fits into 50 2 times, leaving a remainder of 16.
Write down 2 as next digit of the result. 
Result so far: 21726.52
If we subtract 34 from 50, 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.

Moving on to step 9:
When dividing 160 by 17, we get 9 with a remainder of 7.
Write down 9 as next digit of the result. 
Result so far: 21726.529
If we take 153 away from 160, we end up 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.

Moving on to step 10:
17 can be fit into 70 4 times, resulting in a remainder of 2.
Write down 4 as next digit of the result. 
Result so far: 21726.5294
If we subtract 68 from 70, we get 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 11:
When dividing 20 by 17, we get 1 with a remainder of 3.
The number 1 becomes the next digit in our result. 
Result so far: 21726.52941
Deduct 17 from 20 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 12:
30 divided by 17 is 1 with a remainder of 13.
The number 1 becomes the next digit in our result. 
Result so far: 21726.529411
If we take 17 away from 30, we end up 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.

The final outcome is 21726.529411, with a leftover of 1.3e-06.