We look at the division of 975212 by 77 
The aim is to understand the frequency of 77 in 975212.

Going ahead to step 1:
77 goes into 9 0 times with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Fetch the next digit (7) from the dividend, attach it to 9 and continue: 97 / 77

Step 2:
If we divide 97 by 77, we get 1 and a remainder of 20.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 77 away from 97, we end up with 20.
Append the next digit (5) from the dividend to 20 and continue with: 205 / 77

Moving on to step 3:
If we divide 205 by 77, we get 2 and a remainder of 51.
Write down 2 as next digit of the result. 
Result so far: 12.0
If we subtract 154 from 205, we get 51.
Bring next digit (2) of the dividend behind the 51 and repeat the process: 512 / 77

Moving on to step 4:
When dividing 512 by 77, we get 6 with a remainder of 50.
The number 6 becomes the next digit in our result. 
Result so far: 126.0
If we subtract 462 from 512, we get 50.
Bring next digit (1) of the dividend behind the 50 and repeat the process: 501 / 77

Let's proceed to step 5:
501 divided by 77 is 6 with a remainder of 39.
The next digit of our result is 6. 
Result so far: 1266.0
The remainder is 39 after subtracting 462 from 501.
Append the next digit (2) from the dividend to 39 and continue with: 392 / 77

Advancing to step 6:
392 divided by 77 is 5 with a remainder of 7.
The number 5 becomes the next digit in our result. 
Result so far: 12665.0
If we take 385 away from 392, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 7:
The number 77 fits into 70 0 times, leaving a remainder of 70.
Put 0 as the next digit of the answer. 
Result so far: 12665.0
If we subtract 0 from 70, we get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Moving on to step 8:
77 can be fit into 700 9 times, resulting in a remainder of 7.
Record the quotient 9 as the next digit in the result. 
Result so far: 12665.09
Deduct 693 from 700 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 9:
70 divided by 77 is 0 with a remainder of 70.
Use 0 as the next digit of our solution. 
Result so far: 12665.09
The remainder is 70 after subtracting 0 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Let's proceed to step 10:
If we divide 700 by 77, we get 9 and a remainder of 7.
Write down 9 as next digit of the result. 
Result so far: 12665.0909
If we take 693 away from 700, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 11:
When dividing 70 by 77, we get 0 with a remainder of 70.
The next digit of our result is 0. 
Result so far: 12665.0909
If we take 0 away from 70, we end up with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Moving on to step 12:
The number 77 fits into 700 9 times, leaving a remainder of 7.
Put 9 as the next digit of the answer. 
Result so far: 12665.090909
Subtract 693 from 700 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 13:
77 can be fit into 70 0 times, resulting in a remainder of 70.
Write down 0 as next digit of the result. 
Result so far: 12665.090909
Subtracting 0 from 70 leaves us with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Advancing to step 14:
When dividing 700 by 77, we get 9 with a remainder of 7.
Record the quotient 9 as the next digit in the result. 
Result so far: 12665.09090909
Subtract 693 from 700 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

The final result is 12665.09090909 with a remainder of 7e-09.