We're dividing 86177892 by 343 
The aim is to understand the frequency of 343 in 86177892.

On to step 1:
343 goes into 8 0 times with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Append the next digit (6) from the dividend to 8 and continue with: 86 / 343

Let's proceed to step 2:
343 goes into 86 0 times with a remainder of 86.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 86, we get 86.
Fetch the next digit (1) from the dividend, attach it to 86 and continue: 861 / 343

Advancing to step 3:
If we divide 861 by 343, we get 2 and a remainder of 175.
Write down 2 as next digit of the result. 
Result so far: 2.0
The remainder is 175 after subtracting 686 from 861.
Fetch the next digit (7) from the dividend, attach it to 175 and continue: 1757 / 343

Step 4:
The number 343 fits into 1757 5 times, leaving a remainder of 42.
Write down 5 as next digit of the result. 
Result so far: 25.0
Deduct 1715 from 1757 and we're left with 42.
Fetch the next digit (7) from the dividend, attach it to 42 and continue: 427 / 343

Step 5:
343 goes into 427 1 times with a remainder of 84.
Write down 1 as next digit of the result. 
Result so far: 251.0
If we subtract 343 from 427, we get 84.
Bring next digit (8) of the dividend behind the 84 and repeat the process: 848 / 343

Advancing to step 6:
If we divide 848 by 343, we get 2 and a remainder of 162.
Record the quotient 2 as the next digit in the result. 
Result so far: 2512.0
If we subtract 686 from 848, we get 162.
Bring next digit (9) of the dividend behind the 162 and repeat the process: 1629 / 343

Step 7:
343 can be fit into 1629 4 times, resulting in a remainder of 257.
The next digit of our result is 4. 
Result so far: 25124.0
If we take 1372 away from 1629, we end up with 257.
Take the next digit (2) from the dividend and append it to 257, then repeat: 2572 / 343

Advancing to step 8:
343 goes into 2572 7 times with a remainder of 171.
Use 7 as the next digit of our solution. 
Result so far: 251247.0
Subtracting 2401 from 2572 leaves us with 171.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1710, and continue the process.

Advancing to step 9:
If we divide 1710 by 343, we get 4 and a remainder of 338.
Write down 4 as next digit of the result. 
Result so far: 251247.4
Deduct 1372 from 1710 and we're left with 338.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3380, and continue the process.

Step 10:
If we divide 3380 by 343, we get 9 and a remainder of 293.
The next digit of our result is 9. 
Result so far: 251247.49
Subtract 3087 from 3380 to get 293.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2930, and continue the process.

Going ahead to step 11:
2930 divided by 343 is 8 with a remainder of 186.
The number 8 becomes the next digit in our result. 
Result so far: 251247.498
Subtracting 2744 from 2930 leaves us with 186.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1860, and continue the process.

On to step 12:
The number 343 fits into 1860 5 times, leaving a remainder of 145.
Record the quotient 5 as the next digit in the result. 
Result so far: 251247.4985
If we take 1715 away from 1860, we end up with 145.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1450, and continue the process.

Advancing to step 13:
If we divide 1450 by 343, we get 4 and a remainder of 78.
Use 4 as the next digit of our solution. 
Result so far: 251247.49854
Deduct 1372 from 1450 and we're left with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Advancing to step 14:
343 can be fit into 780 2 times, resulting in a remainder of 94.
Put 2 as the next digit of the answer. 
Result so far: 251247.498542
If we subtract 686 from 780, we get 94.
Since there are no more digits in the dividend, we add a zero to the remainder making it 940, and continue the process.

Moving on to step 15:
When dividing 940 by 343, we get 2 with a remainder of 254.
Record the quotient 2 as the next digit in the result. 
Result so far: 251247.4985422
Subtracting 686 from 940 leaves us with 254.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2540, and continue the process.

The final outcome is 251247.4985422, with a leftover of 2.54e-06.