63628665 ÷ 975 
The aim is to understand the frequency of 975 in 63628665.

Moving on to step 1:
When dividing 6 by 975, we get 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Include the next digit (3) from the dividend after 6, then repeat: 63 / 975

On to step 2:
975 goes into 63 0 times with a remainder of 63.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 63, we get 63.
Grab the next digit (6) from the dividend, add it to 63, then carry on: 636 / 975

On to step 3:
975 can be fit into 636 0 times, resulting in a remainder of 636.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 636 and we're left with 636.
Fetch the next digit (2) from the dividend, attach it to 636 and continue: 6362 / 975

Let's proceed to step 4:
975 goes into 6362 6 times with a remainder of 512.
The next digit of our result is 6. 
Result so far: 6.0
The remainder is 512 after subtracting 5850 from 6362.
Fetch the next digit (8) from the dividend, attach it to 512 and continue: 5128 / 975

On to step 5:
975 can be fit into 5128 5 times, resulting in a remainder of 253.
Record the quotient 5 as the next digit in the result. 
Result so far: 65.0
Subtract 4875 from 5128 to get 253.
Include the next digit (6) from the dividend after 253, then repeat: 2536 / 975

Going ahead to step 6:
When dividing 2536 by 975, we get 2 with a remainder of 586.
Put 2 as the next digit of the answer. 
Result so far: 652.0
The remainder is 586 after subtracting 1950 from 2536.
Bring next digit (6) of the dividend behind the 586 and repeat the process: 5866 / 975

Moving on to step 7:
975 can be fit into 5866 6 times, resulting in a remainder of 16.
Write down 6 as next digit of the result. 
Result so far: 6526.0
Subtract 5850 from 5866 to get 16.
Append the next digit (5) from the dividend to 16 and continue with: 165 / 975

Going ahead to step 8:
975 goes into 165 0 times with a remainder of 165.
The number 0 becomes the next digit in our result. 
Result so far: 65260.0
If we subtract 0 from 165, we get 165.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1650, and continue the process.

Advancing to step 9:
1650 divided by 975 is 1 with a remainder of 675.
Put 1 as the next digit of the answer. 
Result so far: 65260.1
If we take 975 away from 1650, we end up with 675.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6750, and continue the process.

Moving on to step 10:
If we divide 6750 by 975, we get 6 and a remainder of 900.
Use 6 as the next digit of our solution. 
Result so far: 65260.16
Deduct 5850 from 6750 and we're left with 900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9000, and continue the process.

Moving on to step 11:
9000 divided by 975 is 9 with a remainder of 225.
Record the quotient 9 as the next digit in the result. 
Result so far: 65260.169
If we take 8775 away from 9000, we end up with 225.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2250, and continue the process.

Let's proceed to step 12:
The number 975 fits into 2250 2 times, leaving a remainder of 300.
The next digit of our result is 2. 
Result so far: 65260.1692
Subtracting 1950 from 2250 leaves us with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

On to step 13:
3000 divided by 975 is 3 with a remainder of 75.
Write down 3 as next digit of the result. 
Result so far: 65260.16923
Deduct 2925 from 3000 and we're left with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Let's proceed to step 14:
975 can be fit into 750 0 times, resulting in a remainder of 750.
The next digit of our result is 0. 
Result so far: 65260.16923
Subtract 0 from 750 to get 750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7500, and continue the process.

Going ahead to step 15:
7500 divided by 975 is 7 with a remainder of 675.
Write down 7 as next digit of the result. 
Result so far: 65260.1692307
If we subtract 6825 from 7500, we get 675.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6750, and continue the process.

Moving on to step 16:
6750 divided by 975 is 6 with a remainder of 900.
The next digit of our result is 6. 
Result so far: 65260.16923076
If we take 5850 away from 6750, we end up with 900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9000, and continue the process.

The final outcome is 65260.16923076, with a leftover of 9e-07.