Let's divide 34433142 by 399
Our goal is to divide 34433142 by 399.

Advancing to step 1:
399 goes into 3 0 times with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Take the next digit (4) from the dividend and append it to 3, then repeat: 34 / 399

Let's proceed to step 2:
The number 399 fits into 34 0 times, leaving a remainder of 34.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 34 to get 34.
Bring next digit (4) of the dividend behind the 34 and repeat the process: 344 / 399

Step 3:
399 can be fit into 344 0 times, resulting in a remainder of 344.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 344, we get 344.
Include the next digit (3) from the dividend after 344, then repeat: 3443 / 399

Step 4:
3443 divided by 399 is 8 with a remainder of 251.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
If we take 3192 away from 3443, we end up with 251.
Append the next digit (3) from the dividend to 251 and continue with: 2513 / 399

Moving on to step 5:
399 goes into 2513 6 times with a remainder of 119.
Write down 6 as next digit of the result. 
Result so far: 86.0
Deduct 2394 from 2513 and we're left with 119.
Grab the next digit (1) from the dividend, add it to 119, then carry on: 1191 / 399

Advancing to step 6:
1191 divided by 399 is 2 with a remainder of 393.
The number 2 becomes the next digit in our result. 
Result so far: 862.0
Subtract 798 from 1191 to get 393.
Append the next digit (4) from the dividend to 393 and continue with: 3934 / 399

On to step 7:
3934 divided by 399 is 9 with a remainder of 343.
The next digit of our result is 9. 
Result so far: 8629.0
Deduct 3591 from 3934 and we're left with 343.
Grab the next digit (2) from the dividend, add it to 343, then carry on: 3432 / 399

Step 8:
3432 divided by 399 is 8 with a remainder of 240.
Use 8 as the next digit of our solution. 
Result so far: 86298.0
Subtract 3192 from 3432 to get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Going ahead to step 9:
If we divide 2400 by 399, we get 6 and a remainder of 6.
Write down 6 as next digit of the result. 
Result so far: 86298.6
If we take 2394 away from 2400, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 10:
399 can be fit into 60 0 times, resulting in a remainder of 60.
The number 0 becomes the next digit in our result. 
Result so far: 86298.6
If we take 0 away from 60, 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.

Advancing to step 11:
399 goes into 600 1 times with a remainder of 201.
Write down 1 as next digit of the result. 
Result so far: 86298.601
Subtract 399 from 600 to get 201.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2010, and continue the process.

Step 12:
2010 divided by 399 is 5 with a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 86298.6015
If we take 1995 away from 2010, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 13:
When dividing 150 by 399, we get 0 with a remainder of 150.
Record the quotient 0 as the next digit in the result. 
Result so far: 86298.6015
If we take 0 away from 150, we end up with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Moving on to step 14:
399 goes into 1500 3 times with a remainder of 303.
Record the quotient 3 as the next digit in the result. 
Result so far: 86298.601503
The remainder is 303 after subtracting 1197 from 1500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3030, and continue the process.

On to step 15:
If we divide 3030 by 399, we get 7 and a remainder of 237.
The number 7 becomes the next digit in our result. 
Result so far: 86298.6015037
If we take 2793 away from 3030, we end up with 237.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2370, and continue the process.

Advancing to step 16:
When dividing 2370 by 399, we get 5 with a remainder of 375.
The next digit of our result is 5. 
Result so far: 86298.60150375
Subtract 1995 from 2370 to get 375.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3750, and continue the process.

The final result is 86298.60150375 with a remainder of 3.75e-07.