We're dividing 86243305 by 155 
Our goal is to divide 86243305 by 155.

Advancing to step 1:
155 can be fit into 8 0 times, resulting in a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 155

Going ahead to step 2:
When dividing 86 by 155, we get 0 with a remainder of 86.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 86 to get 86.
Include the next digit (2) from the dividend after 86, then repeat: 862 / 155

On to step 3:
155 can be fit into 862 5 times, resulting in a remainder of 87.
Use 5 as the next digit of our solution. 
Result so far: 5.0
Subtracting 775 from 862 leaves us with 87.
Include the next digit (4) from the dividend after 87, then repeat: 874 / 155

Going ahead to step 4:
155 goes into 874 5 times with a remainder of 99.
Put 5 as the next digit of the answer. 
Result so far: 55.0
Subtract 775 from 874 to get 99.
Include the next digit (3) from the dividend after 99, then repeat: 993 / 155

Let's proceed to step 5:
155 goes into 993 6 times with a remainder of 63.
Use 6 as the next digit of our solution. 
Result so far: 556.0
If we take 930 away from 993, we end up with 63.
Append the next digit (3) from the dividend to 63 and continue with: 633 / 155

Step 6:
155 can be fit into 633 4 times, resulting in a remainder of 13.
The next digit of our result is 4. 
Result so far: 5564.0
If we subtract 620 from 633, we get 13.
Append the next digit (0) from the dividend to 13 and continue with: 130 / 155

On to step 7:
The number 155 fits into 130 0 times, leaving a remainder of 130.
Use 0 as the next digit of our solution. 
Result so far: 55640.0
Subtracting 0 from 130 leaves us with 130.
Fetch the next digit (5) from the dividend, attach it to 130 and continue: 1305 / 155

Moving on to step 8:
1305 divided by 155 is 8 with a remainder of 65.
The number 8 becomes the next digit in our result. 
Result so far: 556408.0
If we take 1240 away from 1305, we end up with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

On to step 9:
When dividing 650 by 155, we get 4 with a remainder of 30.
Write down 4 as next digit of the result. 
Result so far: 556408.4
Deduct 620 from 650 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 10:
When dividing 300 by 155, we get 1 with a remainder of 145.
Put 1 as the next digit of the answer. 
Result so far: 556408.41
Subtracting 155 from 300 leaves us 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 11:
155 goes into 1450 9 times with a remainder of 55.
Write down 9 as next digit of the result. 
Result so far: 556408.419
Subtracting 1395 from 1450 leaves us with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Moving on to step 12:
550 divided by 155 is 3 with a remainder of 85.
Use 3 as the next digit of our solution. 
Result so far: 556408.4193
Subtracting 465 from 550 leaves us with 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Advancing to step 13:
850 divided by 155 is 5 with a remainder of 75.
Write down 5 as next digit of the result. 
Result so far: 556408.41935
If we subtract 775 from 850, we get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Step 14:
When dividing 750 by 155, we get 4 with a remainder of 130.
Use 4 as the next digit of our solution. 
Result so far: 556408.419354
Deduct 620 from 750 and we're left with 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Going ahead to step 15:
155 can be fit into 1300 8 times, resulting in a remainder of 60.
Record the quotient 8 as the next digit in the result. 
Result so far: 556408.4193548
If we take 1240 away from 1300, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 16:
155 goes into 600 3 times with a remainder of 135.
Use 3 as the next digit of our solution. 
Result so far: 556408.41935483
Deduct 465 from 600 and we're left with 135.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1350, and continue the process.

The final outcome is 556408.41935483, with a leftover of 1.35e-07.