We're dividing 738428 by 17 
The aim is to understand the frequency of 17 in 738428.

Moving on to step 1:
The number 17 fits into 7 0 times, leaving a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Take the next digit (3) from the dividend and append it to 7, then repeat: 73 / 17

On to step 2:
17 can be fit into 73 4 times, resulting in a remainder of 5.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
The remainder is 5 after subtracting 68 from 73.
Bring next digit (8) of the dividend behind the 5 and repeat the process: 58 / 17

Going ahead to step 3:
If we divide 58 by 17, we get 3 and a remainder of 7.
The number 3 becomes the next digit in our result. 
Result so far: 43.0
If we subtract 51 from 58, we get 7.
Grab the next digit (4) from the dividend, add it to 7, then carry on: 74 / 17

Step 4:
17 goes into 74 4 times with a remainder of 6.
The number 4 becomes the next digit in our result. 
Result so far: 434.0
If we subtract 68 from 74, we get 6.
Include the next digit (2) from the dividend after 6, then repeat: 62 / 17

Going ahead to step 5:
17 can be fit into 62 3 times, resulting in a remainder of 11.
Use 3 as the next digit of our solution. 
Result so far: 4343.0
The remainder is 11 after subtracting 51 from 62.
Take the next digit (8) from the dividend and append it to 11, then repeat: 118 / 17

Let's proceed to step 6:
If we divide 118 by 17, we get 6 and a remainder of 16.
The number 6 becomes the next digit in our result. 
Result so far: 43436.0
The remainder is 16 after subtracting 102 from 118.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 7:
17 can be fit into 160 9 times, resulting in a remainder of 7.
The next digit of our result is 9. 
Result so far: 43436.9
Subtracting 153 from 160 leaves us 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.

Going ahead to step 8:
17 can be fit into 70 4 times, resulting in a remainder of 2.
Use 4 as the next digit of our solution. 
Result so far: 43436.94
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.

On to step 9:
If we divide 20 by 17, we get 1 and a remainder of 3.
Put 1 as the next digit of the answer. 
Result so far: 43436.941
If we subtract 17 from 20, we 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.

Step 10:
The number 17 fits into 30 1 times, leaving a remainder of 13.
Put 1 as the next digit of the answer. 
Result so far: 43436.9411
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.

The final outcome is 43436.9411, with a leftover of 0.00013.