84243308 ÷ 591 
Our goal is to divide 84243308 by 591.

Step 1:
When dividing 8 by 591, we get 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Bring next digit (4) of the dividend behind the 8 and repeat the process: 84 / 591

On to step 2:
591 goes into 84 0 times with a remainder of 84.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 84 to get 84.
Fetch the next digit (2) from the dividend, attach it to 84 and continue: 842 / 591

Moving on to step 3:
591 goes into 842 1 times with a remainder of 251.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 251 after subtracting 591 from 842.
Bring next digit (4) of the dividend behind the 251 and repeat the process: 2514 / 591

On to step 4:
If we divide 2514 by 591, we get 4 and a remainder of 150.
The number 4 becomes the next digit in our result. 
Result so far: 14.0
Subtracting 2364 from 2514 leaves us with 150.
Grab the next digit (3) from the dividend, add it to 150, then carry on: 1503 / 591

Going ahead to step 5:
If we divide 1503 by 591, we get 2 and a remainder of 321.
Put 2 as the next digit of the answer. 
Result so far: 142.0
Subtract 1182 from 1503 to get 321.
Include the next digit (3) from the dividend after 321, then repeat: 3213 / 591

Going ahead to step 6:
3213 divided by 591 is 5 with a remainder of 258.
Use 5 as the next digit of our solution. 
Result so far: 1425.0
If we subtract 2955 from 3213, we get 258.
Include the next digit (0) from the dividend after 258, then repeat: 2580 / 591

Going ahead to step 7:
The number 591 fits into 2580 4 times, leaving a remainder of 216.
Write down 4 as next digit of the result. 
Result so far: 14254.0
The remainder is 216 after subtracting 2364 from 2580.
Bring next digit (8) of the dividend behind the 216 and repeat the process: 2168 / 591

Going ahead to step 8:
When dividing 2168 by 591, we get 3 with a remainder of 395.
Write down 3 as next digit of the result. 
Result so far: 142543.0
Subtract 1773 from 2168 to get 395.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3950, and continue the process.

Moving on to step 9:
The number 591 fits into 3950 6 times, leaving a remainder of 404.
Record the quotient 6 as the next digit in the result. 
Result so far: 142543.6
Subtracting 3546 from 3950 leaves us with 404.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4040, and continue the process.

Advancing to step 10:
591 goes into 4040 6 times with a remainder of 494.
The next digit of our result is 6. 
Result so far: 142543.66
The remainder is 494 after subtracting 3546 from 4040.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4940, and continue the process.

The final result is 142543.66 with a remainder of 0.494.