81777923 ÷ 880 
The aim is to understand the frequency of 880 in 81777923.

Advancing to step 1:
The number 880 fits into 8 0 times, leaving a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Include the next digit (1) from the dividend after 8, then repeat: 81 / 880

Going ahead to step 2:
880 goes into 81 0 times with a remainder of 81.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 81 and we're left with 81.
Take the next digit (7) from the dividend and append it to 81, then repeat: 817 / 880

Going ahead to step 3:
The number 880 fits into 817 0 times, leaving a remainder of 817.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 817 and we're left with 817.
Fetch the next digit (7) from the dividend, attach it to 817 and continue: 8177 / 880

Step 4:
The number 880 fits into 8177 9 times, leaving a remainder of 257.
Put 9 as the next digit of the answer. 
Result so far: 9.0
If we subtract 7920 from 8177, we get 257.
Fetch the next digit (7) from the dividend, attach it to 257 and continue: 2577 / 880

Moving on to step 5:
When dividing 2577 by 880, we get 2 with a remainder of 817.
Use 2 as the next digit of our solution. 
Result so far: 92.0
Subtracting 1760 from 2577 leaves us with 817.
Include the next digit (9) from the dividend after 817, then repeat: 8179 / 880

Going ahead to step 6:
The number 880 fits into 8179 9 times, leaving a remainder of 259.
Put 9 as the next digit of the answer. 
Result so far: 929.0
The remainder is 259 after subtracting 7920 from 8179.
Append the next digit (2) from the dividend to 259 and continue with: 2592 / 880

Moving on to step 7:
When dividing 2592 by 880, we get 2 with a remainder of 832.
The next digit of our result is 2. 
Result so far: 9292.0
Subtract 1760 from 2592 to get 832.
Include the next digit (3) from the dividend after 832, then repeat: 8323 / 880

Moving on to step 8:
When dividing 8323 by 880, we get 9 with a remainder of 403.
The number 9 becomes the next digit in our result. 
Result so far: 92929.0
Subtracting 7920 from 8323 leaves us with 403.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4030, and continue the process.

Going ahead to step 9:
880 can be fit into 4030 4 times, resulting in a remainder of 510.
Record the quotient 4 as the next digit in the result. 
Result so far: 92929.4
The remainder is 510 after subtracting 3520 from 4030.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5100, and continue the process.

Advancing to step 10:
The number 880 fits into 5100 5 times, leaving a remainder of 700.
Use 5 as the next digit of our solution. 
Result so far: 92929.45
Subtract 4400 from 5100 to get 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7000, and continue the process.

Going ahead to step 11:
7000 divided by 880 is 7 with a remainder of 840.
The next digit of our result is 7. 
Result so far: 92929.457
Subtract 6160 from 7000 to get 840.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8400, and continue the process.

Moving on to step 12:
880 can be fit into 8400 9 times, resulting in a remainder of 480.
Put 9 as the next digit of the answer. 
Result so far: 92929.4579
Subtracting 7920 from 8400 leaves us with 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Step 13:
The number 880 fits into 4800 5 times, leaving a remainder of 400.
The next digit of our result is 5. 
Result so far: 92929.45795
The remainder is 400 after subtracting 4400 from 4800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Advancing to step 14:
When dividing 4000 by 880, we get 4 with a remainder of 480.
Put 4 as the next digit of the answer. 
Result so far: 92929.457954
Subtracting 3520 from 4000 leaves us with 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Going ahead to step 15:
If we divide 4800 by 880, we get 5 and a remainder of 400.
Use 5 as the next digit of our solution. 
Result so far: 92929.4579545
The remainder is 400 after subtracting 4400 from 4800.
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 16:
When dividing 4000 by 880, we get 4 with a remainder of 480.
Use 4 as the next digit of our solution. 
Result so far: 92929.45795454
If we subtract 3520 from 4000, we get 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

The final outcome is 92929.45795454, with a leftover of 4.8e-07.