45899928 divided by 399 
We want to figure out the number of times 45899928 can be divided by 399.

Moving on to step 1:
The number 399 fits into 4 0 times, leaving a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Grab the next digit (5) from the dividend, add it to 4, then carry on: 45 / 399

On to step 2:
399 can be fit into 45 0 times, resulting in a remainder of 45.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 45, we end up with 45.
Grab the next digit (8) from the dividend, add it to 45, then carry on: 458 / 399

Advancing to step 3:
When dividing 458 by 399, we get 1 with a remainder of 59.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 59 after subtracting 399 from 458.
Take the next digit (9) from the dividend and append it to 59, then repeat: 599 / 399

Going ahead to step 4:
399 goes into 599 1 times with a remainder of 200.
Record the quotient 1 as the next digit in the result. 
Result so far: 11.0
If we subtract 399 from 599, we get 200.
Bring next digit (9) of the dividend behind the 200 and repeat the process: 2009 / 399

Going ahead to step 5:
If we divide 2009 by 399, we get 5 and a remainder of 14.
Write down 5 as next digit of the result. 
Result so far: 115.0
If we subtract 1995 from 2009, we get 14.
Fetch the next digit (9) from the dividend, attach it to 14 and continue: 149 / 399

Advancing to step 6:
399 can be fit into 149 0 times, resulting in a remainder of 149.
Record the quotient 0 as the next digit in the result. 
Result so far: 1150.0
Subtract 0 from 149 to get 149.
Fetch the next digit (2) from the dividend, attach it to 149 and continue: 1492 / 399

Going ahead to step 7:
399 can be fit into 1492 3 times, resulting in a remainder of 295.
Write down 3 as next digit of the result. 
Result so far: 11503.0
The remainder is 295 after subtracting 1197 from 1492.
Fetch the next digit (8) from the dividend, attach it to 295 and continue: 2958 / 399

Moving on to step 8:
399 goes into 2958 7 times with a remainder of 165.
The next digit of our result is 7. 
Result so far: 115037.0
If we subtract 2793 from 2958, we get 165.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1650, and continue the process.

Moving on to step 9:
399 goes into 1650 4 times with a remainder of 54.
The number 4 becomes the next digit in our result. 
Result so far: 115037.4
Subtracting 1596 from 1650 leaves us with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

On to step 10:
540 divided by 399 is 1 with a remainder of 141.
Use 1 as the next digit of our solution. 
Result so far: 115037.41
If we take 399 away from 540, we end up with 141.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1410, and continue the process.

Step 11:
1410 divided by 399 is 3 with a remainder of 213.
The number 3 becomes the next digit in our result. 
Result so far: 115037.413
Subtracting 1197 from 1410 leaves us with 213.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2130, and continue the process.

Moving on to step 12:
If we divide 2130 by 399, we get 5 and a remainder of 135.
The next digit of our result is 5. 
Result so far: 115037.4135
Subtract 1995 from 2130 to get 135.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1350, and continue the process.

Let's proceed to step 13:
The number 399 fits into 1350 3 times, leaving a remainder of 153.
The next digit of our result is 3. 
Result so far: 115037.41353
Subtract 1197 from 1350 to get 153.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1530, and continue the process.

Let's proceed to step 14:
When dividing 1530 by 399, we get 3 with a remainder of 333.
Write down 3 as next digit of the result. 
Result so far: 115037.413533
Subtract 1197 from 1530 to get 333.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3330, and continue the process.

After the division, we end up with 115037.413533 and a remainder of 3.33e-05.