We look at the division of 20397392 by 717 
The aim is to understand the frequency of 717 in 20397392.

Let's proceed to step 1:
When dividing 2 by 717, we get 0 with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Append the next digit (0) from the dividend to 2 and continue with: 20 / 717

Moving on to step 2:
717 goes into 20 0 times with a remainder of 20.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 20 and we're left with 20.
Bring next digit (3) of the dividend behind the 20 and repeat the process: 203 / 717

Moving on to step 3:
If we divide 203 by 717, we get 0 and a remainder of 203.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 203, we end up with 203.
Take the next digit (9) from the dividend and append it to 203, then repeat: 2039 / 717

Let's proceed to step 4:
717 can be fit into 2039 2 times, resulting in a remainder of 605.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtracting 1434 from 2039 leaves us with 605.
Grab the next digit (7) from the dividend, add it to 605, then carry on: 6057 / 717

Step 5:
If we divide 6057 by 717, we get 8 and a remainder of 321.
Put 8 as the next digit of the answer. 
Result so far: 28.0
Deduct 5736 from 6057 and we're left with 321.
Take the next digit (3) from the dividend and append it to 321, then repeat: 3213 / 717

On to step 6:
717 goes into 3213 4 times with a remainder of 345.
The number 4 becomes the next digit in our result. 
Result so far: 284.0
Subtract 2868 from 3213 to get 345.
Take the next digit (9) from the dividend and append it to 345, then repeat: 3459 / 717

Going ahead to step 7:
717 can be fit into 3459 4 times, resulting in a remainder of 591.
Write down 4 as next digit of the result. 
Result so far: 2844.0
Deduct 2868 from 3459 and we're left with 591.
Include the next digit (2) from the dividend after 591, then repeat: 5912 / 717

Moving on to step 8:
717 goes into 5912 8 times with a remainder of 176.
The number 8 becomes the next digit in our result. 
Result so far: 28448.0
Deduct 5736 from 5912 and we're left with 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

Let's proceed to step 9:
If we divide 1760 by 717, we get 2 and a remainder of 326.
Put 2 as the next digit of the answer. 
Result so far: 28448.2
If we subtract 1434 from 1760, we get 326.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3260, and continue the process.

Going ahead to step 10:
717 can be fit into 3260 4 times, resulting in a remainder of 392.
The next digit of our result is 4. 
Result so far: 28448.24
The remainder is 392 after subtracting 2868 from 3260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3920, and continue the process.

Moving on to step 11:
717 goes into 3920 5 times with a remainder of 335.
Put 5 as the next digit of the answer. 
Result so far: 28448.245
Deduct 3585 from 3920 and we're left with 335.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3350, and continue the process.

Advancing to step 12:
717 can be fit into 3350 4 times, resulting in a remainder of 482.
The number 4 becomes the next digit in our result. 
Result so far: 28448.2454
Subtracting 2868 from 3350 leaves us with 482.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4820, and continue the process.

Going ahead to step 13:
When dividing 4820 by 717, we get 6 with a remainder of 518.
Use 6 as the next digit of our solution. 
Result so far: 28448.24546
The remainder is 518 after subtracting 4302 from 4820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5180, and continue the process.

Advancing to step 14:
5180 divided by 717 is 7 with a remainder of 161.
Put 7 as the next digit of the answer. 
Result so far: 28448.245467
If we subtract 5019 from 5180, we get 161.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1610, and continue the process.

Advancing to step 15:
If we divide 1610 by 717, we get 2 and a remainder of 176.
The next digit of our result is 2. 
Result so far: 28448.2454672
If we subtract 1434 from 1610, we get 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

Let's proceed to step 16:
When dividing 1760 by 717, we get 2 with a remainder of 326.
Put 2 as the next digit of the answer. 
Result so far: 28448.24546722
If we take 1434 away from 1760, we end up with 326.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3260, and continue the process.

After the division, we end up with 28448.24546722 and a remainder of 3.26e-07.