We're dividing 64390229 by 975 
The aim is to understand the frequency of 975 in 64390229.

Advancing to step 1:
6 divided by 975 is 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 975

Going ahead to step 2:
64 divided by 975 is 0 with a remainder of 64.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 64 to get 64.
Grab the next digit (3) from the dividend, add it to 64, then carry on: 643 / 975

Step 3:
643 divided by 975 is 0 with a remainder of 643.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 643 after subtracting 0 from 643.
Fetch the next digit (9) from the dividend, attach it to 643 and continue: 6439 / 975

Moving on to step 4:
6439 divided by 975 is 6 with a remainder of 589.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
If we subtract 5850 from 6439, we get 589.
Fetch the next digit (0) from the dividend, attach it to 589 and continue: 5890 / 975

Moving on to step 5:
975 goes into 5890 6 times with a remainder of 40.
Use 6 as the next digit of our solution. 
Result so far: 66.0
Subtracting 5850 from 5890 leaves us with 40.
Bring next digit (2) of the dividend behind the 40 and repeat the process: 402 / 975

Let's proceed to step 6:
When dividing 402 by 975, we get 0 with a remainder of 402.
The next digit of our result is 0. 
Result so far: 660.0
Deduct 0 from 402 and we're left with 402.
Include the next digit (2) from the dividend after 402, then repeat: 4022 / 975

Moving on to step 7:
975 can be fit into 4022 4 times, resulting in a remainder of 122.
Use 4 as the next digit of our solution. 
Result so far: 6604.0
If we take 3900 away from 4022, we end up with 122.
Grab the next digit (9) from the dividend, add it to 122, then carry on: 1229 / 975

Moving on to step 8:
When dividing 1229 by 975, we get 1 with a remainder of 254.
The number 1 becomes the next digit in our result. 
Result so far: 66041.0
If we subtract 975 from 1229, we get 254.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2540, and continue the process.

Moving on to step 9:
When dividing 2540 by 975, we get 2 with a remainder of 590.
Use 2 as the next digit of our solution. 
Result so far: 66041.2
Subtract 1950 from 2540 to get 590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5900, and continue the process.

On to step 10:
975 goes into 5900 6 times with a remainder of 50.
The next digit of our result is 6. 
Result so far: 66041.26
If we subtract 5850 from 5900, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 11:
975 can be fit into 500 0 times, resulting in a remainder of 500.
The next digit of our result is 0. 
Result so far: 66041.26
Deduct 0 from 500 and we're left with 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

Step 12:
5000 divided by 975 is 5 with a remainder of 125.
The number 5 becomes the next digit in our result. 
Result so far: 66041.2605
Subtracting 4875 from 5000 leaves us with 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

Moving on to step 13:
If we divide 1250 by 975, we get 1 and a remainder of 275.
Record the quotient 1 as the next digit in the result. 
Result so far: 66041.26051
If we take 975 away from 1250, we end up with 275.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2750, and continue the process.

Advancing to step 14:
When dividing 2750 by 975, we get 2 with a remainder of 800.
Record the quotient 2 as the next digit in the result. 
Result so far: 66041.260512
If we take 1950 away from 2750, we end up with 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8000, and continue the process.

Step 15:
975 can be fit into 8000 8 times, resulting in a remainder of 200.
Put 8 as the next digit of the answer. 
Result so far: 66041.2605128
Deduct 7800 from 8000 and we're left with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Step 16:
975 can be fit into 2000 2 times, resulting in a remainder of 50.
Put 2 as the next digit of the answer. 
Result so far: 66041.26051282
Deduct 1950 from 2000 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

The quotient of the division is 66041.26051282, and the remainder is 5e-08.