145103 divided by 17 
The aim is to understand the frequency of 17 in 145103.

Step 1:
1 divided by 17 is 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Grab the next digit (4) from the dividend, add it to 1, then carry on: 14 / 17

Going ahead to step 2:
When dividing 14 by 17, we get 0 with a remainder of 14.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 14, we get 14.
Grab the next digit (5) from the dividend, add it to 14, then carry on: 145 / 17

On to step 3:
If we divide 145 by 17, we get 8 and a remainder of 9.
Use 8 as the next digit of our solution. 
Result so far: 8.0
If we take 136 away from 145, we end up with 9.
Fetch the next digit (1) from the dividend, attach it to 9 and continue: 91 / 17

Going ahead to step 4:
17 goes into 91 5 times with a remainder of 6.
Write down 5 as next digit of the result. 
Result so far: 85.0
The remainder is 6 after subtracting 85 from 91.
Bring next digit (0) of the dividend behind the 6 and repeat the process: 60 / 17

Step 5:
17 goes into 60 3 times with a remainder of 9.
Write down 3 as next digit of the result. 
Result so far: 853.0
Subtracting 51 from 60 leaves us with 9.
Fetch the next digit (3) from the dividend, attach it to 9 and continue: 93 / 17

Step 6:
17 can be fit into 93 5 times, resulting in a remainder of 8.
Record the quotient 5 as the next digit in the result. 
Result so far: 8535.0
If we take 85 away from 93, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 7:
If we divide 80 by 17, we get 4 and a remainder of 12.
Record the quotient 4 as the next digit in the result. 
Result so far: 8535.4
The remainder is 12 after subtracting 68 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 8:
120 divided by 17 is 7 with a remainder of 1.
Use 7 as the next digit of our solution. 
Result so far: 8535.47
Subtracting 119 from 120 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 9:
17 can be fit into 10 0 times, resulting in a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 8535.47
Subtract 0 from 10 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 10:
The number 17 fits into 100 5 times, leaving a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 8535.4705
Subtracting 85 from 100 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 11:
If we divide 150 by 17, we get 8 and a remainder of 14.
Record the quotient 8 as the next digit in the result. 
Result so far: 8535.47058
If we take 136 away from 150, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 12:
If we divide 140 by 17, we get 8 and a remainder of 4.
Put 8 as the next digit of the answer. 
Result so far: 8535.470588
Subtracting 136 from 140 leaves us 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.

The final outcome is 8535.470588, with a leftover of 4e-07.