80379943 ÷ 349 
Our goal is to divide 80379943 by 349.

Going ahead to step 1:
349 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
Subtracting 0 from 8 leaves us with 8.
Append the next digit (0) from the dividend to 8 and continue with: 80 / 349

Moving on to step 2:
349 can be fit into 80 0 times, resulting in a remainder of 80.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 80 after subtracting 0 from 80.
Append the next digit (3) from the dividend to 80 and continue with: 803 / 349

Going ahead to step 3:
349 goes into 803 2 times with a remainder of 105.
Write down 2 as next digit of the result. 
Result so far: 2.0
Deduct 698 from 803 and we're left with 105.
Append the next digit (7) from the dividend to 105 and continue with: 1057 / 349

Let's proceed to step 4:
The number 349 fits into 1057 3 times, leaving a remainder of 10.
Record the quotient 3 as the next digit in the result. 
Result so far: 23.0
Subtracting 1047 from 1057 leaves us with 10.
Bring next digit (9) of the dividend behind the 10 and repeat the process: 109 / 349

Moving on to step 5:
If we divide 109 by 349, we get 0 and a remainder of 109.
Use 0 as the next digit of our solution. 
Result so far: 230.0
Deduct 0 from 109 and we're left with 109.
Include the next digit (9) from the dividend after 109, then repeat: 1099 / 349

Advancing to step 6:
349 can be fit into 1099 3 times, resulting in a remainder of 52.
The next digit of our result is 3. 
Result so far: 2303.0
If we subtract 1047 from 1099, we get 52.
Bring next digit (4) of the dividend behind the 52 and repeat the process: 524 / 349

On to step 7:
349 can be fit into 524 1 times, resulting in a remainder of 175.
The number 1 becomes the next digit in our result. 
Result so far: 23031.0
If we subtract 349 from 524, we get 175.
Grab the next digit (3) from the dividend, add it to 175, then carry on: 1753 / 349

Let's proceed to step 8:
349 goes into 1753 5 times with a remainder of 8.
Record the quotient 5 as the next digit in the result. 
Result so far: 230315.0
If we take 1745 away from 1753, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 9:
When dividing 80 by 349, we get 0 with a remainder of 80.
Record the quotient 0 as the next digit in the result. 
Result so far: 230315.0
If we take 0 away from 80, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 10:
The number 349 fits into 800 2 times, leaving a remainder of 102.
Write down 2 as next digit of the result. 
Result so far: 230315.02
Deduct 698 from 800 and we're left with 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

Step 11:
349 can be fit into 1020 2 times, resulting in a remainder of 322.
The next digit of our result is 2. 
Result so far: 230315.022
Deduct 698 from 1020 and we're left with 322.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3220, and continue the process.

After the division, we end up with 230315.022 and a remainder of 0.0322.