54678823 ÷ 343 
Let's see how many times 343 fits into 54678823.

Moving on to step 1:
If we divide 5 by 343, we get 0 and a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Fetch the next digit (4) from the dividend, attach it to 5 and continue: 54 / 343

Step 2:
343 goes into 54 0 times with a remainder of 54.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 54 leaves us with 54.
Grab the next digit (6) from the dividend, add it to 54, then carry on: 546 / 343

On to step 3:
343 goes into 546 1 times with a remainder of 203.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 343 from 546 leaves us with 203.
Bring next digit (7) of the dividend behind the 203 and repeat the process: 2037 / 343

Let's proceed to step 4:
343 goes into 2037 5 times with a remainder of 322.
Put 5 as the next digit of the answer. 
Result so far: 15.0
Subtracting 1715 from 2037 leaves us with 322.
Grab the next digit (8) from the dividend, add it to 322, then carry on: 3228 / 343

Step 5:
The number 343 fits into 3228 9 times, leaving a remainder of 141.
Write down 9 as next digit of the result. 
Result so far: 159.0
If we subtract 3087 from 3228, we get 141.
Append the next digit (8) from the dividend to 141 and continue with: 1418 / 343

Going ahead to step 6:
When dividing 1418 by 343, we get 4 with a remainder of 46.
Use 4 as the next digit of our solution. 
Result so far: 1594.0
The remainder is 46 after subtracting 1372 from 1418.
Take the next digit (2) from the dividend and append it to 46, then repeat: 462 / 343

Step 7:
343 can be fit into 462 1 times, resulting in a remainder of 119.
Use 1 as the next digit of our solution. 
Result so far: 15941.0
Subtracting 343 from 462 leaves us with 119.
Grab the next digit (3) from the dividend, add it to 119, then carry on: 1193 / 343

Step 8:
The number 343 fits into 1193 3 times, leaving a remainder of 164.
The number 3 becomes the next digit in our result. 
Result so far: 159413.0
The remainder is 164 after subtracting 1029 from 1193.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1640, and continue the process.

Advancing to step 9:
The number 343 fits into 1640 4 times, leaving a remainder of 268.
Use 4 as the next digit of our solution. 
Result so far: 159413.4
Deduct 1372 from 1640 and we're left with 268.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2680, and continue the process.

Going ahead to step 10:
343 goes into 2680 7 times with a remainder of 279.
The next digit of our result is 7. 
Result so far: 159413.47
Subtracting 2401 from 2680 leaves us with 279.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2790, and continue the process.

Let's proceed to step 11:
343 can be fit into 2790 8 times, resulting in a remainder of 46.
The next digit of our result is 8. 
Result so far: 159413.478
Subtract 2744 from 2790 to get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

On to step 12:
460 divided by 343 is 1 with a remainder of 117.
Use 1 as the next digit of our solution. 
Result so far: 159413.4781
Subtract 343 from 460 to get 117.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1170, and continue the process.

Let's proceed to step 13:
The number 343 fits into 1170 3 times, leaving a remainder of 141.
The next digit of our result is 3. 
Result so far: 159413.47813
If we take 1029 away from 1170, we end up with 141.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1410, and continue the process.

Step 14:
If we divide 1410 by 343, we get 4 and a remainder of 38.
The next digit of our result is 4. 
Result so far: 159413.478134
Deduct 1372 from 1410 and we're left with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Advancing to step 15:
380 divided by 343 is 1 with a remainder of 37.
The next digit of our result is 1. 
Result so far: 159413.4781341
If we take 343 away from 380, we end up with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Let's proceed to step 16:
When dividing 370 by 343, we get 1 with a remainder of 27.
Write down 1 as next digit of the result. 
Result so far: 159413.47813411
Subtract 343 from 370 to get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

After the division, we end up with 159413.47813411 and a remainder of 2.7e-08.