399571 ÷ 93 
Our goal is to divide 399571 by 93.

Step 1:
3 divided by 93 is 0 with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 93

Advancing to step 2:
If we divide 39 by 93, we get 0 and a remainder of 39.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 39 and we're left with 39.
Bring next digit (9) of the dividend behind the 39 and repeat the process: 399 / 93

Step 3:
399 divided by 93 is 4 with a remainder of 27.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Subtracting 372 from 399 leaves us with 27.
Include the next digit (5) from the dividend after 27, then repeat: 275 / 93

Moving on to step 4:
93 goes into 275 2 times with a remainder of 89.
Put 2 as the next digit of the answer. 
Result so far: 42.0
If we subtract 186 from 275, we get 89.
Include the next digit (7) from the dividend after 89, then repeat: 897 / 93

On to step 5:
93 can be fit into 897 9 times, resulting in a remainder of 60.
Write down 9 as next digit of the result. 
Result so far: 429.0
Deduct 837 from 897 and we're left with 60.
Fetch the next digit (1) from the dividend, attach it to 60 and continue: 601 / 93

Advancing to step 6:
When dividing 601 by 93, we get 6 with a remainder of 43.
Write down 6 as next digit of the result. 
Result so far: 4296.0
Subtracting 558 from 601 leaves us with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Step 7:
93 goes into 430 4 times with a remainder of 58.
Put 4 as the next digit of the answer. 
Result so far: 4296.4
The remainder is 58 after subtracting 372 from 430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Step 8:
93 goes into 580 6 times with a remainder of 22.
Put 6 as the next digit of the answer. 
Result so far: 4296.46
The remainder is 22 after subtracting 558 from 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Advancing to step 9:
93 goes into 220 2 times with a remainder of 34.
The next digit of our result is 2. 
Result so far: 4296.462
Deduct 186 from 220 and we're left with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Moving on to step 10:
340 divided by 93 is 3 with a remainder of 61.
Use 3 as the next digit of our solution. 
Result so far: 4296.4623
Subtract 279 from 340 to get 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Going ahead to step 11:
93 goes into 610 6 times with a remainder of 52.
The number 6 becomes the next digit in our result. 
Result so far: 4296.46236
Deduct 558 from 610 and we're left with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

On to step 12:
When dividing 520 by 93, we get 5 with a remainder of 55.
The number 5 becomes the next digit in our result. 
Result so far: 4296.462365
If we subtract 465 from 520, we get 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

On to step 13:
If we divide 550 by 93, we get 5 and a remainder of 85.
The next digit of our result is 5. 
Result so far: 4296.4623655
Subtract 465 from 550 to get 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

The final result is 4296.4623655 with a remainder of 8.5e-07.