We divide 643196 by 17
The aim is to understand the frequency of 17 in 643196.

On to step 1:
The number 17 fits into 6 0 times, leaving a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Bring next digit (4) of the dividend behind the 6 and repeat the process: 64 / 17

On to step 2:
The number 17 fits into 64 3 times, leaving a remainder of 13.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we take 51 away from 64, we end up with 13.
Grab the next digit (3) from the dividend, add it to 13, then carry on: 133 / 17

Going ahead to step 3:
If we divide 133 by 17, we get 7 and a remainder of 14.
Put 7 as the next digit of the answer. 
Result so far: 37.0
Subtracting 119 from 133 leaves us with 14.
Include the next digit (1) from the dividend after 14, then repeat: 141 / 17

On to step 4:
17 can be fit into 141 8 times, resulting in a remainder of 5.
Put 8 as the next digit of the answer. 
Result so far: 378.0
If we take 136 away from 141, we end up with 5.
Fetch the next digit (9) from the dividend, attach it to 5 and continue: 59 / 17

Step 5:
59 divided by 17 is 3 with a remainder of 8.
The number 3 becomes the next digit in our result. 
Result so far: 3783.0
Subtracting 51 from 59 leaves us with 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 17

Advancing to step 6:
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: 37835.0
The remainder is 1 after subtracting 85 from 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 7:
The number 17 fits into 10 0 times, leaving a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 37835.0
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.

Going ahead to step 8:
If we divide 100 by 17, we get 5 and a remainder of 15.
Record the quotient 5 as the next digit in the result. 
Result so far: 37835.05
If we take 85 away from 100, we end up 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.

Moving on to step 9:
When dividing 150 by 17, we get 8 with a remainder of 14.
The next digit of our result is 8. 
Result so far: 37835.058
If we subtract 136 from 150, we get 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 10:
17 goes into 140 8 times with a remainder of 4.
The next digit of our result is 8. 
Result so far: 37835.0588
If we take 136 away from 140, we end up 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 quotient of the division is 37835.0588, and the remainder is 4e-05.