We're dividing 313972 by 17 
The aim is to understand the frequency of 17 in 313972.

Going ahead to step 1:
When dividing 3 by 17, we get 0 with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Grab the next digit (1) from the dividend, add it to 3, then carry on: 31 / 17

On to step 2:
The number 17 fits into 31 1 times, leaving a remainder of 14.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 17 from 31 leaves us with 14.
Fetch the next digit (3) from the dividend, attach it to 14 and continue: 143 / 17

Advancing to step 3:
The number 17 fits into 143 8 times, leaving a remainder of 7.
The number 8 becomes the next digit in our result. 
Result so far: 18.0
Subtract 136 from 143 to get 7.
Append the next digit (9) from the dividend to 7 and continue with: 79 / 17

On to step 4:
17 can be fit into 79 4 times, resulting in a remainder of 11.
Record the quotient 4 as the next digit in the result. 
Result so far: 184.0
The remainder is 11 after subtracting 68 from 79.
Append the next digit (7) from the dividend to 11 and continue with: 117 / 17

Step 5:
117 divided by 17 is 6 with a remainder of 15.
Record the quotient 6 as the next digit in the result. 
Result so far: 1846.0
If we take 102 away from 117, we end up with 15.
Grab the next digit (2) from the dividend, add it to 15, then carry on: 152 / 17

On to step 6:
When dividing 152 by 17, we get 8 with a remainder of 16.
The next digit of our result is 8. 
Result so far: 18468.0
Deduct 136 from 152 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 7:
When dividing 160 by 17, we get 9 with a remainder of 7.
Use 9 as the next digit of our solution. 
Result so far: 18468.9
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.

Going ahead to step 8:
If we divide 70 by 17, we get 4 and a remainder of 2.
Write down 4 as next digit of the result. 
Result so far: 18468.94
Subtracting 68 from 70 leaves us 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.

Let's proceed to step 9:
If we divide 20 by 17, we get 1 and a remainder of 3.
The next digit of our result is 1. 
Result so far: 18468.941
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.

On to step 10:
17 can be fit into 30 1 times, resulting in a remainder of 13.
Record the quotient 1 as the next digit in the result. 
Result so far: 18468.9411
Subtract 17 from 30 to get 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 18468.9411 and a remainder of 0.00013.