We look at the division of 235073 by 77 
The aim is to understand the frequency of 77 in 235073.

Step 1:
77 goes into 2 0 times with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Append the next digit (3) from the dividend to 2 and continue with: 23 / 77

Let's proceed to step 2:
77 can be fit into 23 0 times, resulting in a remainder of 23.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 23 after subtracting 0 from 23.
Include the next digit (5) from the dividend after 23, then repeat: 235 / 77

Advancing to step 3:
When dividing 235 by 77, we get 3 with a remainder of 4.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtracting 231 from 235 leaves us with 4.
Bring next digit (0) of the dividend behind the 4 and repeat the process: 40 / 77

Going ahead to step 4:
If we divide 40 by 77, we get 0 and a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 30.0
The remainder is 40 after subtracting 0 from 40.
Bring next digit (7) of the dividend behind the 40 and repeat the process: 407 / 77

Advancing to step 5:
If we divide 407 by 77, we get 5 and a remainder of 22.
The number 5 becomes the next digit in our result. 
Result so far: 305.0
If we subtract 385 from 407, we get 22.
Fetch the next digit (3) from the dividend, attach it to 22 and continue: 223 / 77

Advancing to step 6:
77 goes into 223 2 times with a remainder of 69.
Put 2 as the next digit of the answer. 
Result so far: 3052.0
Deduct 154 from 223 and we're left with 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Step 7:
When dividing 690 by 77, we get 8 with a remainder of 74.
The next digit of our result is 8. 
Result so far: 3052.8
Subtract 616 from 690 to get 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Going ahead to step 8:
740 divided by 77 is 9 with a remainder of 47.
Put 9 as the next digit of the answer. 
Result so far: 3052.89
Subtract 693 from 740 to get 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Advancing to step 9:
470 divided by 77 is 6 with a remainder of 8.
The number 6 becomes the next digit in our result. 
Result so far: 3052.896
Subtracting 462 from 470 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 10:
If we divide 80 by 77, we get 1 and a remainder of 3.
The number 1 becomes the next digit in our result. 
Result so far: 3052.8961
Deduct 77 from 80 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 11:
The number 77 fits into 30 0 times, leaving a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 3052.8961
If we take 0 away from 30, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 12:
300 divided by 77 is 3 with a remainder of 69.
The next digit of our result is 3. 
Result so far: 3052.896103
Subtract 231 from 300 to get 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Step 13:
690 divided by 77 is 8 with a remainder of 74.
Write down 8 as next digit of the result. 
Result so far: 3052.8961038
If we subtract 616 from 690, we get 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Going ahead to step 14:
When dividing 740 by 77, we get 9 with a remainder of 47.
Use 9 as the next digit of our solution. 
Result so far: 3052.89610389
If we take 693 away from 740, we end up with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

The final outcome is 3052.89610389, with a leftover of 4.7e-08.