80111339 ÷ 345 
Our goal is to divide 80111339 by 345.

Moving on to step 1:
When dividing 8 by 345, we get 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Take the next digit (0) from the dividend and append it to 8, then repeat: 80 / 345

On to step 2:
If we divide 80 by 345, we get 0 and a remainder of 80.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 80 and we're left with 80.
Grab the next digit (1) from the dividend, add it to 80, then carry on: 801 / 345

Let's proceed to step 3:
When dividing 801 by 345, we get 2 with a remainder of 111.
The next digit of our result is 2. 
Result so far: 2.0
If we take 690 away from 801, we end up with 111.
Take the next digit (1) from the dividend and append it to 111, then repeat: 1111 / 345

Let's proceed to step 4:
When dividing 1111 by 345, we get 3 with a remainder of 76.
Record the quotient 3 as the next digit in the result. 
Result so far: 23.0
If we subtract 1035 from 1111, we get 76.
Include the next digit (1) from the dividend after 76, then repeat: 761 / 345

Advancing to step 5:
761 divided by 345 is 2 with a remainder of 71.
Put 2 as the next digit of the answer. 
Result so far: 232.0
The remainder is 71 after subtracting 690 from 761.
Take the next digit (3) from the dividend and append it to 71, then repeat: 713 / 345

Advancing to step 6:
345 goes into 713 2 times with a remainder of 23.
The next digit of our result is 2. 
Result so far: 2322.0
If we take 690 away from 713, we end up with 23.
Include the next digit (3) from the dividend after 23, then repeat: 233 / 345

On to step 7:
233 divided by 345 is 0 with a remainder of 233.
The next digit of our result is 0. 
Result so far: 23220.0
Subtracting 0 from 233 leaves us with 233.
Fetch the next digit (9) from the dividend, attach it to 233 and continue: 2339 / 345

Let's proceed to step 8:
When dividing 2339 by 345, we get 6 with a remainder of 269.
The next digit of our result is 6. 
Result so far: 232206.0
If we take 2070 away from 2339, we end up with 269.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2690, and continue the process.

Step 9:
2690 divided by 345 is 7 with a remainder of 275.
Record the quotient 7 as the next digit in the result. 
Result so far: 232206.7
If we take 2415 away from 2690, we end up with 275.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2750, and continue the process.

Advancing to step 10:
345 can be fit into 2750 7 times, resulting in a remainder of 335.
Use 7 as the next digit of our solution. 
Result so far: 232206.77
The remainder is 335 after subtracting 2415 from 2750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3350, and continue the process.

The final result is 232206.77 with a remainder of 0.335.