We look at the division of 17720426 by 975 
The aim is to understand the frequency of 975 in 17720426.

Moving on to step 1:
If we divide 1 by 975, we get 0 and a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Grab the next digit (7) from the dividend, add it to 1, then carry on: 17 / 975

On to step 2:
975 goes into 17 0 times with a remainder of 17.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 17 to get 17.
Fetch the next digit (7) from the dividend, attach it to 17 and continue: 177 / 975

On to step 3:
If we divide 177 by 975, we get 0 and a remainder of 177.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 177, we end up with 177.
Bring next digit (2) of the dividend behind the 177 and repeat the process: 1772 / 975

On to step 4:
1772 divided by 975 is 1 with a remainder of 797.
The next digit of our result is 1. 
Result so far: 1.0
If we take 975 away from 1772, we end up with 797.
Append the next digit (0) from the dividend to 797 and continue with: 7970 / 975

Going ahead to step 5:
7970 divided by 975 is 8 with a remainder of 170.
Write down 8 as next digit of the result. 
Result so far: 18.0
If we take 7800 away from 7970, we end up with 170.
Fetch the next digit (4) from the dividend, attach it to 170 and continue: 1704 / 975

Moving on to step 6:
The number 975 fits into 1704 1 times, leaving a remainder of 729.
Use 1 as the next digit of our solution. 
Result so far: 181.0
The remainder is 729 after subtracting 975 from 1704.
Take the next digit (2) from the dividend and append it to 729, then repeat: 7292 / 975

Going ahead to step 7:
If we divide 7292 by 975, we get 7 and a remainder of 467.
The next digit of our result is 7. 
Result so far: 1817.0
If we take 6825 away from 7292, we end up with 467.
Append the next digit (6) from the dividend to 467 and continue with: 4676 / 975

Moving on to step 8:
4676 divided by 975 is 4 with a remainder of 776.
Write down 4 as next digit of the result. 
Result so far: 18174.0
The remainder is 776 after subtracting 3900 from 4676.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7760, and continue the process.

Step 9:
When dividing 7760 by 975, we get 7 with a remainder of 935.
Write down 7 as next digit of the result. 
Result so far: 18174.7
Deduct 6825 from 7760 and we're left with 935.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9350, and continue the process.

Going ahead to step 10:
975 goes into 9350 9 times with a remainder of 575.
The next digit of our result is 9. 
Result so far: 18174.79
Subtracting 8775 from 9350 leaves us with 575.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5750, and continue the process.

Moving on to step 11:
975 can be fit into 5750 5 times, resulting in a remainder of 875.
Put 5 as the next digit of the answer. 
Result so far: 18174.795
Subtracting 4875 from 5750 leaves us with 875.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8750, and continue the process.

Going ahead to step 12:
When dividing 8750 by 975, we get 8 with a remainder of 950.
Put 8 as the next digit of the answer. 
Result so far: 18174.7958
Deduct 7800 from 8750 and we're left with 950.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9500, and continue the process.

Let's proceed to step 13:
975 goes into 9500 9 times with a remainder of 725.
Record the quotient 9 as the next digit in the result. 
Result so far: 18174.79589
Subtract 8775 from 9500 to get 725.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7250, and continue the process.

Moving on to step 14:
7250 divided by 975 is 7 with a remainder of 425.
The next digit of our result is 7. 
Result so far: 18174.795897
If we take 6825 away from 7250, we end up with 425.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4250, and continue the process.

Advancing to step 15:
975 can be fit into 4250 4 times, resulting in a remainder of 350.
The next digit of our result is 4. 
Result so far: 18174.7958974
Subtract 3900 from 4250 to get 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

Let's proceed to step 16:
975 can be fit into 3500 3 times, resulting in a remainder of 575.
Put 3 as the next digit of the answer. 
Result so far: 18174.79589743
If we take 2925 away from 3500, we end up with 575.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5750, and continue the process.

The final result is 18174.79589743 with a remainder of 5.75e-07.