We look at the division of 77235495 by 771 
The aim is to understand the frequency of 771 in 77235495.

Let's proceed to step 1:
When dividing 7 by 771, we get 0 with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Bring next digit (7) of the dividend behind the 7 and repeat the process: 77 / 771

Moving on to step 2:
771 can be fit into 77 0 times, resulting in a remainder of 77.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 77 after subtracting 0 from 77.
Include the next digit (2) from the dividend after 77, then repeat: 772 / 771

Advancing to step 3:
772 divided by 771 is 1 with a remainder of 1.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 771 away from 772, we end up with 1.
Bring next digit (3) of the dividend behind the 1 and repeat the process: 13 / 771

Going ahead to step 4:
771 can be fit into 13 0 times, resulting in a remainder of 13.
Write down 0 as next digit of the result. 
Result so far: 10.0
If we take 0 away from 13, we end up with 13.
Grab the next digit (5) from the dividend, add it to 13, then carry on: 135 / 771

On to step 5:
771 can be fit into 135 0 times, resulting in a remainder of 135.
Use 0 as the next digit of our solution. 
Result so far: 100.0
Deduct 0 from 135 and we're left with 135.
Grab the next digit (4) from the dividend, add it to 135, then carry on: 1354 / 771

Advancing to step 6:
1354 divided by 771 is 1 with a remainder of 583.
The number 1 becomes the next digit in our result. 
Result so far: 1001.0
If we subtract 771 from 1354, we get 583.
Fetch the next digit (9) from the dividend, attach it to 583 and continue: 5839 / 771

Moving on to step 7:
771 goes into 5839 7 times with a remainder of 442.
The next digit of our result is 7. 
Result so far: 10017.0
Deduct 5397 from 5839 and we're left with 442.
Append the next digit (5) from the dividend to 442 and continue with: 4425 / 771

Going ahead to step 8:
If we divide 4425 by 771, we get 5 and a remainder of 570.
Put 5 as the next digit of the answer. 
Result so far: 100175.0
Deduct 3855 from 4425 and we're left with 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5700, and continue the process.

Going ahead to step 9:
771 goes into 5700 7 times with a remainder of 303.
Put 7 as the next digit of the answer. 
Result so far: 100175.7
Subtracting 5397 from 5700 leaves us with 303.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3030, and continue the process.

Step 10:
The number 771 fits into 3030 3 times, leaving a remainder of 717.
Use 3 as the next digit of our solution. 
Result so far: 100175.73
If we subtract 2313 from 3030, we get 717.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7170, and continue the process.

Advancing to step 11:
771 goes into 7170 9 times with a remainder of 231.
Write down 9 as next digit of the result. 
Result so far: 100175.739
Subtracting 6939 from 7170 leaves us with 231.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2310, and continue the process.

Going ahead to step 12:
The number 771 fits into 2310 2 times, leaving a remainder of 768.
Put 2 as the next digit of the answer. 
Result so far: 100175.7392
If we take 1542 away from 2310, we end up with 768.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7680, and continue the process.

Advancing to step 13:
771 can be fit into 7680 9 times, resulting in a remainder of 741.
The number 9 becomes the next digit in our result. 
Result so far: 100175.73929
If we take 6939 away from 7680, we end up with 741.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7410, and continue the process.

Advancing to step 14:
When dividing 7410 by 771, we get 9 with a remainder of 471.
Use 9 as the next digit of our solution. 
Result so far: 100175.739299
If we take 6939 away from 7410, we end up with 471.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4710, and continue the process.

The final result is 100175.739299 with a remainder of 4.71e-05.