55481619 ÷ 343 
Our goal is to divide 55481619 by 343.

Advancing to step 1:
5 divided by 343 is 0 with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Append the next digit (5) from the dividend to 5 and continue with: 55 / 343

Step 2:
343 can be fit into 55 0 times, resulting in a remainder of 55.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 55, we get 55.
Include the next digit (4) from the dividend after 55, then repeat: 554 / 343

Advancing to step 3:
If we divide 554 by 343, we get 1 and a remainder of 211.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 343 from 554 to get 211.
Take the next digit (8) from the dividend and append it to 211, then repeat: 2118 / 343

Moving on to step 4:
If we divide 2118 by 343, we get 6 and a remainder of 60.
Write down 6 as next digit of the result. 
Result so far: 16.0
If we take 2058 away from 2118, we end up with 60.
Include the next digit (1) from the dividend after 60, then repeat: 601 / 343

Advancing to step 5:
601 divided by 343 is 1 with a remainder of 258.
Record the quotient 1 as the next digit in the result. 
Result so far: 161.0
If we take 343 away from 601, we end up with 258.
Append the next digit (6) from the dividend to 258 and continue with: 2586 / 343

Going ahead to step 6:
If we divide 2586 by 343, we get 7 and a remainder of 185.
The next digit of our result is 7. 
Result so far: 1617.0
Subtracting 2401 from 2586 leaves us with 185.
Take the next digit (1) from the dividend and append it to 185, then repeat: 1851 / 343

Going ahead to step 7:
343 goes into 1851 5 times with a remainder of 136.
The next digit of our result is 5. 
Result so far: 16175.0
Deduct 1715 from 1851 and we're left with 136.
Fetch the next digit (9) from the dividend, attach it to 136 and continue: 1369 / 343

Step 8:
The number 343 fits into 1369 3 times, leaving a remainder of 340.
Write down 3 as next digit of the result. 
Result so far: 161753.0
Deduct 1029 from 1369 and we're left with 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Going ahead to step 9:
The number 343 fits into 3400 9 times, leaving a remainder of 313.
Record the quotient 9 as the next digit in the result. 
Result so far: 161753.9
The remainder is 313 after subtracting 3087 from 3400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3130, and continue the process.

Going ahead to step 10:
343 goes into 3130 9 times with a remainder of 43.
The next digit of our result is 9. 
Result so far: 161753.99
If we subtract 3087 from 3130, we get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

The final result is 161753.99 with a remainder of 0.043.