We're dividing 81094280 by 343 
The aim is to understand the frequency of 343 in 81094280.

On to step 1:
343 goes into 8 0 times with 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.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 343

Advancing to step 2:
The number 343 fits into 81 0 times, leaving a remainder of 81.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 81 leaves us with 81.
Grab the next digit (0) from the dividend, add it to 81, then carry on: 810 / 343

On to step 3:
343 goes into 810 2 times with a remainder of 124.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we take 686 away from 810, we end up with 124.
Include the next digit (9) from the dividend after 124, then repeat: 1249 / 343

On to step 4:
343 goes into 1249 3 times with a remainder of 220.
The number 3 becomes the next digit in our result. 
Result so far: 23.0
If we take 1029 away from 1249, we end up with 220.
Append the next digit (4) from the dividend to 220 and continue with: 2204 / 343

Moving on to step 5:
If we divide 2204 by 343, we get 6 and a remainder of 146.
Write down 6 as next digit of the result. 
Result so far: 236.0
If we take 2058 away from 2204, we end up with 146.
Fetch the next digit (2) from the dividend, attach it to 146 and continue: 1462 / 343

Going ahead to step 6:
The number 343 fits into 1462 4 times, leaving a remainder of 90.
Record the quotient 4 as the next digit in the result. 
Result so far: 2364.0
If we take 1372 away from 1462, we end up with 90.
Append the next digit (8) from the dividend to 90 and continue with: 908 / 343

Moving on to step 7:
If we divide 908 by 343, we get 2 and a remainder of 222.
Put 2 as the next digit of the answer. 
Result so far: 23642.0
Subtract 686 from 908 to get 222.
Fetch the next digit (0) from the dividend, attach it to 222 and continue: 2220 / 343

On to step 8:
When dividing 2220 by 343, we get 6 with a remainder of 162.
Use 6 as the next digit of our solution. 
Result so far: 236426.0
Subtracting 2058 from 2220 leaves us with 162.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1620, and continue the process.

Going ahead to step 9:
The number 343 fits into 1620 4 times, leaving a remainder of 248.
Record the quotient 4 as the next digit in the result. 
Result so far: 236426.4
If we take 1372 away from 1620, we end up with 248.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

Step 10:
343 can be fit into 2480 7 times, resulting in a remainder of 79.
The next digit of our result is 7. 
Result so far: 236426.47
If we take 2401 away from 2480, we end up with 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

Advancing to step 11:
790 divided by 343 is 2 with a remainder of 104.
Record the quotient 2 as the next digit in the result. 
Result so far: 236426.472
Subtract 686 from 790 to get 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Advancing to step 12:
343 goes into 1040 3 times with a remainder of 11.
Record the quotient 3 as the next digit in the result. 
Result so far: 236426.4723
Deduct 1029 from 1040 and we're left with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 13:
343 goes into 110 0 times with a remainder of 110.
Write down 0 as next digit of the result. 
Result so far: 236426.4723
Subtract 0 from 110 to get 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Going ahead to step 14:
1100 divided by 343 is 3 with a remainder of 71.
The next digit of our result is 3. 
Result so far: 236426.472303
Subtracting 1029 from 1100 leaves us with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Let's proceed to step 15:
When dividing 710 by 343, we get 2 with a remainder of 24.
The number 2 becomes the next digit in our result. 
Result so far: 236426.4723032
Subtract 686 from 710 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 16:
343 can be fit into 240 0 times, resulting in a remainder of 240.
Write down 0 as next digit of the result. 
Result so far: 236426.4723032
The remainder is 240 after subtracting 0 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

The final outcome is 236426.4723032, with a leftover of 2.4e-07.