We divide 57212008 by 399
We want to divide 57212008 by 399.

Let's proceed to step 1:
399 can be fit into 5 0 times, resulting in a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Append the next digit (7) from the dividend to 5 and continue with: 57 / 399

Step 2:
When dividing 57 by 399, we get 0 with a remainder of 57.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 57 to get 57.
Take the next digit (2) from the dividend and append it to 57, then repeat: 572 / 399

On to step 3:
If we divide 572 by 399, we get 1 and a remainder of 173.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 173 after subtracting 399 from 572.
Append the next digit (1) from the dividend to 173 and continue with: 1731 / 399

Moving on to step 4:
When dividing 1731 by 399, we get 4 with a remainder of 135.
Put 4 as the next digit of the answer. 
Result so far: 14.0
The remainder is 135 after subtracting 1596 from 1731.
Fetch the next digit (2) from the dividend, attach it to 135 and continue: 1352 / 399

Let's proceed to step 5:
399 goes into 1352 3 times with a remainder of 155.
The number 3 becomes the next digit in our result. 
Result so far: 143.0
If we subtract 1197 from 1352, we get 155.
Fetch the next digit (0) from the dividend, attach it to 155 and continue: 1550 / 399

Advancing to step 6:
399 goes into 1550 3 times with a remainder of 353.
Put 3 as the next digit of the answer. 
Result so far: 1433.0
The remainder is 353 after subtracting 1197 from 1550.
Fetch the next digit (0) from the dividend, attach it to 353 and continue: 3530 / 399

Step 7:
If we divide 3530 by 399, we get 8 and a remainder of 338.
Write down 8 as next digit of the result. 
Result so far: 14338.0
If we take 3192 away from 3530, we end up with 338.
Take the next digit (8) from the dividend and append it to 338, then repeat: 3388 / 399

Going ahead to step 8:
The number 399 fits into 3388 8 times, leaving a remainder of 196.
Use 8 as the next digit of our solution. 
Result so far: 143388.0
Deduct 3192 from 3388 and we're left with 196.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1960, and continue the process.

Going ahead to step 9:
The number 399 fits into 1960 4 times, leaving a remainder of 364.
Put 4 as the next digit of the answer. 
Result so far: 143388.4
The remainder is 364 after subtracting 1596 from 1960.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3640, and continue the process.

Let's proceed to step 10:
3640 divided by 399 is 9 with a remainder of 49.
Put 9 as the next digit of the answer. 
Result so far: 143388.49
Subtract 3591 from 3640 to get 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Let's proceed to step 11:
490 divided by 399 is 1 with a remainder of 91.
The number 1 becomes the next digit in our result. 
Result so far: 143388.491
Subtract 399 from 490 to get 91.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

On to step 12:
If we divide 910 by 399, we get 2 and a remainder of 112.
Record the quotient 2 as the next digit in the result. 
Result so far: 143388.4912
Subtracting 798 from 910 leaves us with 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Let's proceed to step 13:
399 can be fit into 1120 2 times, resulting in a remainder of 322.
Record the quotient 2 as the next digit in the result. 
Result so far: 143388.49122
If we take 798 away from 1120, we end up with 322.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3220, and continue the process.

In conclusion, the division gives 143388.49122 with a balance of 0.000322.