We look at the division of 60813691 by 975 
The aim is to understand the frequency of 975 in 60813691.

Advancing to step 1:
If we divide 6 by 975, we get 0 and a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Include the next digit (0) from the dividend after 6, then repeat: 60 / 975

Advancing to step 2:
The number 975 fits into 60 0 times, leaving a remainder of 60.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 60 and we're left with 60.
Include the next digit (8) from the dividend after 60, then repeat: 608 / 975

Going ahead to step 3:
If we divide 608 by 975, we get 0 and a remainder of 608.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 608 after subtracting 0 from 608.
Include the next digit (1) from the dividend after 608, then repeat: 6081 / 975

Going ahead to step 4:
If we divide 6081 by 975, we get 6 and a remainder of 231.
Put 6 as the next digit of the answer. 
Result so far: 6.0
Subtract 5850 from 6081 to get 231.
Bring next digit (3) of the dividend behind the 231 and repeat the process: 2313 / 975

Step 5:
2313 divided by 975 is 2 with a remainder of 363.
Write down 2 as next digit of the result. 
Result so far: 62.0
Subtracting 1950 from 2313 leaves us with 363.
Append the next digit (6) from the dividend to 363 and continue with: 3636 / 975

Moving on to step 6:
The number 975 fits into 3636 3 times, leaving a remainder of 711.
Write down 3 as next digit of the result. 
Result so far: 623.0
If we take 2925 away from 3636, we end up with 711.
Bring next digit (9) of the dividend behind the 711 and repeat the process: 7119 / 975

Moving on to step 7:
If we divide 7119 by 975, we get 7 and a remainder of 294.
The number 7 becomes the next digit in our result. 
Result so far: 6237.0
The remainder is 294 after subtracting 6825 from 7119.
Take the next digit (1) from the dividend and append it to 294, then repeat: 2941 / 975

Advancing to step 8:
975 can be fit into 2941 3 times, resulting in a remainder of 16.
Put 3 as the next digit of the answer. 
Result so far: 62373.0
Subtracting 2925 from 2941 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 9:
If we divide 160 by 975, we get 0 and a remainder of 160.
Record the quotient 0 as the next digit in the result. 
Result so far: 62373.0
The remainder is 160 after subtracting 0 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Going ahead to step 10:
The number 975 fits into 1600 1 times, leaving a remainder of 625.
Put 1 as the next digit of the answer. 
Result so far: 62373.01
If we subtract 975 from 1600, we get 625.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6250, and continue the process.

Step 11:
The number 975 fits into 6250 6 times, leaving a remainder of 400.
The next digit of our result is 6. 
Result so far: 62373.016
If we subtract 5850 from 6250, we get 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Let's proceed to step 12:
When dividing 4000 by 975, we get 4 with a remainder of 100.
Record the quotient 4 as the next digit in the result. 
Result so far: 62373.0164
Subtract 3900 from 4000 to get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Step 13:
When dividing 1000 by 975, we get 1 with a remainder of 25.
Record the quotient 1 as the next digit in the result. 
Result so far: 62373.01641
Deduct 975 from 1000 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Advancing to step 14:
975 can be fit into 250 0 times, resulting in a remainder of 250.
Write down 0 as next digit of the result. 
Result so far: 62373.01641
If we subtract 0 from 250, we get 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

On to step 15:
When dividing 2500 by 975, we get 2 with a remainder of 550.
Put 2 as the next digit of the answer. 
Result so far: 62373.0164102
Subtracting 1950 from 2500 leaves us with 550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5500, and continue the process.

Advancing to step 16:
5500 divided by 975 is 5 with a remainder of 625.
The next digit of our result is 5. 
Result so far: 62373.01641025
Subtracting 4875 from 5500 leaves us with 625.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6250, and continue the process.

The final result is 62373.01641025 with a remainder of 6.25e-07.