Let's divide 30503125 by 399
Let's see how many times 399 fits into 30503125.

Let's proceed to step 1:
The number 399 fits into 3 0 times, leaving a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Include the next digit (0) from the dividend after 3, then repeat: 30 / 399

Moving on to step 2:
399 goes into 30 0 times with a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 30 and we're left with 30.
Take the next digit (5) from the dividend and append it to 30, then repeat: 305 / 399

Going ahead to step 3:
305 divided by 399 is 0 with a remainder of 305.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 305 leaves us with 305.
Grab the next digit (0) from the dividend, add it to 305, then carry on: 3050 / 399

Going ahead to step 4:
399 can be fit into 3050 7 times, resulting in a remainder of 257.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
Deduct 2793 from 3050 and we're left with 257.
Take the next digit (3) from the dividend and append it to 257, then repeat: 2573 / 399

Let's proceed to step 5:
When dividing 2573 by 399, we get 6 with a remainder of 179.
Put 6 as the next digit of the answer. 
Result so far: 76.0
If we subtract 2394 from 2573, we get 179.
Fetch the next digit (1) from the dividend, attach it to 179 and continue: 1791 / 399

Moving on to step 6:
If we divide 1791 by 399, we get 4 and a remainder of 195.
The next digit of our result is 4. 
Result so far: 764.0
Subtracting 1596 from 1791 leaves us with 195.
Take the next digit (2) from the dividend and append it to 195, then repeat: 1952 / 399

Let's proceed to step 7:
If we divide 1952 by 399, we get 4 and a remainder of 356.
The next digit of our result is 4. 
Result so far: 7644.0
The remainder is 356 after subtracting 1596 from 1952.
Take the next digit (5) from the dividend and append it to 356, then repeat: 3565 / 399

Advancing to step 8:
399 goes into 3565 8 times with a remainder of 373.
Put 8 as the next digit of the answer. 
Result so far: 76448.0
Subtract 3192 from 3565 to get 373.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3730, and continue the process.

On to step 9:
When dividing 3730 by 399, we get 9 with a remainder of 139.
Write down 9 as next digit of the result. 
Result so far: 76448.9
If we subtract 3591 from 3730, we get 139.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1390, and continue the process.

Going ahead to step 10:
When dividing 1390 by 399, we get 3 with a remainder of 193.
Use 3 as the next digit of our solution. 
Result so far: 76448.93
If we subtract 1197 from 1390, we get 193.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1930, and continue the process.

Let's proceed to step 11:
1930 divided by 399 is 4 with a remainder of 334.
Record the quotient 4 as the next digit in the result. 
Result so far: 76448.934
Subtracting 1596 from 1930 leaves us with 334.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3340, and continue the process.

Step 12:
399 goes into 3340 8 times with a remainder of 148.
The next digit of our result is 8. 
Result so far: 76448.9348
If we take 3192 away from 3340, we end up with 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

Let's proceed to step 13:
When dividing 1480 by 399, we get 3 with a remainder of 283.
The next digit of our result is 3. 
Result so far: 76448.93483
The remainder is 283 after subtracting 1197 from 1480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2830, and continue the process.

Step 14:
When dividing 2830 by 399, we get 7 with a remainder of 37.
Write down 7 as next digit of the result. 
Result so far: 76448.934837
Subtracting 2793 from 2830 leaves us with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Advancing to step 15:
When dividing 370 by 399, we get 0 with a remainder of 370.
Put 0 as the next digit of the answer. 
Result so far: 76448.934837
Subtract 0 from 370 to get 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

Moving on to step 16:
The number 399 fits into 3700 9 times, leaving a remainder of 109.
The next digit of our result is 9. 
Result so far: 76448.93483709
If we subtract 3591 from 3700, we get 109.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1090, and continue the process.

The final outcome is 76448.93483709, with a leftover of 1.09e-07.