We look at the division of 81406469 by 880 
The aim is to understand the frequency of 880 in 81406469.

Let's proceed to step 1:
880 can be fit into 8 0 times, resulting in a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Append the next digit (1) from the dividend to 8 and continue with: 81 / 880

Going ahead to step 2:
When dividing 81 by 880, we get 0 with a remainder of 81.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 81 after subtracting 0 from 81.
Fetch the next digit (4) from the dividend, attach it to 81 and continue: 814 / 880

Let's proceed to step 3:
880 can be fit into 814 0 times, resulting in a remainder of 814.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 814 leaves us with 814.
Fetch the next digit (0) from the dividend, attach it to 814 and continue: 8140 / 880

Advancing to step 4:
880 can be fit into 8140 9 times, resulting in a remainder of 220.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
Subtracting 7920 from 8140 leaves us with 220.
Fetch the next digit (6) from the dividend, attach it to 220 and continue: 2206 / 880

Going ahead to step 5:
2206 divided by 880 is 2 with a remainder of 446.
The number 2 becomes the next digit in our result. 
Result so far: 92.0
The remainder is 446 after subtracting 1760 from 2206.
Bring next digit (4) of the dividend behind the 446 and repeat the process: 4464 / 880

Step 6:
880 can be fit into 4464 5 times, resulting in a remainder of 64.
Write down 5 as next digit of the result. 
Result so far: 925.0
If we subtract 4400 from 4464, we get 64.
Grab the next digit (6) from the dividend, add it to 64, then carry on: 646 / 880

Step 7:
If we divide 646 by 880, we get 0 and a remainder of 646.
The next digit of our result is 0. 
Result so far: 9250.0
The remainder is 646 after subtracting 0 from 646.
Fetch the next digit (9) from the dividend, attach it to 646 and continue: 6469 / 880

Advancing to step 8:
The number 880 fits into 6469 7 times, leaving a remainder of 309.
Put 7 as the next digit of the answer. 
Result so far: 92507.0
Subtract 6160 from 6469 to get 309.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3090, and continue the process.

Let's proceed to step 9:
When dividing 3090 by 880, we get 3 with a remainder of 450.
Use 3 as the next digit of our solution. 
Result so far: 92507.3
If we take 2640 away from 3090, we end up with 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

Going ahead to step 10:
If we divide 4500 by 880, we get 5 and a remainder of 100.
The number 5 becomes the next digit in our result. 
Result so far: 92507.35
If we subtract 4400 from 4500, we 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.

On to step 11:
When dividing 1000 by 880, we get 1 with a remainder of 120.
The next digit of our result is 1. 
Result so far: 92507.351
Subtract 880 from 1000 to get 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Going ahead to step 12:
When dividing 1200 by 880, we get 1 with a remainder of 320.
Record the quotient 1 as the next digit in the result. 
Result so far: 92507.3511
Subtract 880 from 1200 to get 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

The final outcome is 92507.3511, with a leftover of 0.0032.