We're dividing 99743421 by 975 
The aim is to understand the frequency of 975 in 99743421.

Step 1:
975 can be fit into 9 0 times, resulting in a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Fetch the next digit (9) from the dividend, attach it to 9 and continue: 99 / 975

On to step 2:
When dividing 99 by 975, we get 0 with a remainder of 99.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 99 after subtracting 0 from 99.
Fetch the next digit (7) from the dividend, attach it to 99 and continue: 997 / 975

Moving on to step 3:
997 divided by 975 is 1 with a remainder of 22.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 975 from 997, we get 22.
Take the next digit (4) from the dividend and append it to 22, then repeat: 224 / 975

On to step 4:
975 goes into 224 0 times with a remainder of 224.
Use 0 as the next digit of our solution. 
Result so far: 10.0
Subtract 0 from 224 to get 224.
Include the next digit (3) from the dividend after 224, then repeat: 2243 / 975

Going ahead to step 5:
975 can be fit into 2243 2 times, resulting in a remainder of 293.
Use 2 as the next digit of our solution. 
Result so far: 102.0
Subtracting 1950 from 2243 leaves us with 293.
Bring next digit (4) of the dividend behind the 293 and repeat the process: 2934 / 975

Advancing to step 6:
2934 divided by 975 is 3 with a remainder of 9.
The next digit of our result is 3. 
Result so far: 1023.0
If we take 2925 away from 2934, we end up with 9.
Take the next digit (2) from the dividend and append it to 9, then repeat: 92 / 975

On to step 7:
When dividing 92 by 975, we get 0 with a remainder of 92.
Write down 0 as next digit of the result. 
Result so far: 10230.0
Deduct 0 from 92 and we're left with 92.
Take the next digit (1) from the dividend and append it to 92, then repeat: 921 / 975

Going ahead to step 8:
The number 975 fits into 921 0 times, leaving a remainder of 921.
Put 0 as the next digit of the answer. 
Result so far: 102300.0
Subtracting 0 from 921 leaves us with 921.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9210, and continue the process.

Moving on to step 9:
9210 divided by 975 is 9 with a remainder of 435.
The next digit of our result is 9. 
Result so far: 102300.9
Deduct 8775 from 9210 and we're left with 435.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4350, and continue the process.

Advancing to step 10:
975 can be fit into 4350 4 times, resulting in a remainder of 450.
Write down 4 as next digit of the result. 
Result so far: 102300.94
The remainder is 450 after subtracting 3900 from 4350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

Moving on to step 11:
The number 975 fits into 4500 4 times, leaving a remainder of 600.
Record the quotient 4 as the next digit in the result. 
Result so far: 102300.944
Deduct 3900 from 4500 and we're left with 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

The quotient of the division is 102300.944, and the remainder is 0.06.