We're dividing 863640 by 17 
The aim is to understand the frequency of 17 in 863640.

Going ahead to step 1:
8 divided by 17 is 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Append the next digit (6) from the dividend to 8 and continue with: 86 / 17

On to step 2:
The number 17 fits into 86 5 times, leaving a remainder of 1.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Subtracting 85 from 86 leaves us with 1.
Bring next digit (3) of the dividend behind the 1 and repeat the process: 13 / 17

Let's proceed to step 3:
17 can be fit into 13 0 times, resulting in a remainder of 13.
The number 0 becomes the next digit in our result. 
Result so far: 50.0
The remainder is 13 after subtracting 0 from 13.
Append the next digit (6) from the dividend to 13 and continue with: 136 / 17

Let's proceed to step 4:
136 divided by 17 is 8 with a remainder of 0.
The next digit of our result is 8. 
Result so far: 508.0
Subtracting 136 from 136 leaves us with 0.
Append the next digit (4) from the dividend to 0 and continue with: 4 / 17

Advancing to step 5:
17 goes into 4 0 times with a remainder of 4.
The next digit of our result is 0. 
Result so far: 5080.0
Subtracting 0 from 4 leaves us with 4.
Fetch the next digit (0) from the dividend, attach it to 4 and continue: 40 / 17

On to step 6:
When dividing 40 by 17, we get 2 with a remainder of 6.
Use 2 as the next digit of our solution. 
Result so far: 50802.0
Subtracting 34 from 40 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 7:
When dividing 60 by 17, we get 3 with a remainder of 9.
Put 3 as the next digit of the answer. 
Result so far: 50802.3
If we take 51 away from 60, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 8:
When dividing 90 by 17, we get 5 with a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 50802.35
Deduct 85 from 90 and we're left 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.

On to step 9:
50 divided by 17 is 2 with a remainder of 16.
Use 2 as the next digit of our solution. 
Result so far: 50802.352
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.

Advancing to step 10:
17 can be fit into 160 9 times, resulting in a remainder of 7.
Record the quotient 9 as the next digit in the result. 
Result so far: 50802.3529
If we subtract 153 from 160, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 11:
When dividing 70 by 17, we get 4 with a remainder of 2.
The next digit of our result is 4. 
Result so far: 50802.35294
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.

Advancing to step 12:
20 divided by 17 is 1 with a remainder of 3.
Put 1 as the next digit of the answer. 
Result so far: 50802.352941
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.

Moving on to step 13:
17 goes into 30 1 times with a remainder of 13.
Write down 1 as next digit of the result. 
Result so far: 50802.3529411
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 quotient of the division is 50802.3529411, and the remainder is 1.3e-07.