We look at the division of 39408153 by 448 
We want to divide 39408153 by 448.

Step 1:
3 divided by 448 is 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Bring next digit (9) of the dividend behind the 3 and repeat the process: 39 / 448

Let's proceed to step 2:
448 goes into 39 0 times with a remainder of 39.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 39, we get 39.
Include the next digit (4) from the dividend after 39, then repeat: 394 / 448

Moving on to step 3:
448 can be fit into 394 0 times, resulting in a remainder of 394.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 394, we get 394.
Fetch the next digit (0) from the dividend, attach it to 394 and continue: 3940 / 448

Let's proceed to step 4:
3940 divided by 448 is 8 with a remainder of 356.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
The remainder is 356 after subtracting 3584 from 3940.
Bring next digit (8) of the dividend behind the 356 and repeat the process: 3568 / 448

Let's proceed to step 5:
448 goes into 3568 7 times with a remainder of 432.
Write down 7 as next digit of the result. 
Result so far: 87.0
Subtracting 3136 from 3568 leaves us with 432.
Bring next digit (1) of the dividend behind the 432 and repeat the process: 4321 / 448

Moving on to step 6:
When dividing 4321 by 448, we get 9 with a remainder of 289.
Put 9 as the next digit of the answer. 
Result so far: 879.0
If we subtract 4032 from 4321, we get 289.
Grab the next digit (5) from the dividend, add it to 289, then carry on: 2895 / 448

Step 7:
448 can be fit into 2895 6 times, resulting in a remainder of 207.
Use 6 as the next digit of our solution. 
Result so far: 8796.0
Subtract 2688 from 2895 to get 207.
Grab the next digit (3) from the dividend, add it to 207, then carry on: 2073 / 448

Advancing to step 8:
When dividing 2073 by 448, we get 4 with a remainder of 281.
The number 4 becomes the next digit in our result. 
Result so far: 87964.0
Subtract 1792 from 2073 to get 281.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2810, and continue the process.

Step 9:
448 goes into 2810 6 times with a remainder of 122.
Write down 6 as next digit of the result. 
Result so far: 87964.6
If we subtract 2688 from 2810, we get 122.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

Step 10:
When dividing 1220 by 448, we get 2 with a remainder of 324.
The number 2 becomes the next digit in our result. 
Result so far: 87964.62
Subtract 896 from 1220 to get 324.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

Let's proceed to step 11:
The number 448 fits into 3240 7 times, leaving a remainder of 104.
The number 7 becomes the next digit in our result. 
Result so far: 87964.627
Subtract 3136 from 3240 to get 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Let's proceed to step 12:
The number 448 fits into 1040 2 times, leaving a remainder of 144.
Put 2 as the next digit of the answer. 
Result so far: 87964.6272
Deduct 896 from 1040 and we're left with 144.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

Going ahead to step 13:
448 goes into 1440 3 times with a remainder of 96.
Record the quotient 3 as the next digit in the result. 
Result so far: 87964.62723
If we subtract 1344 from 1440, we get 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

On to step 14:
The number 448 fits into 960 2 times, leaving a remainder of 64.
Record the quotient 2 as the next digit in the result. 
Result so far: 87964.627232
Subtracting 896 from 960 leaves us with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

On to step 15:
If we divide 640 by 448, we get 1 and a remainder of 192.
The number 1 becomes the next digit in our result. 
Result so far: 87964.6272321
If we take 448 away from 640, we end up with 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

Let's proceed to step 16:
If we divide 1920 by 448, we get 4 and a remainder of 128.
Use 4 as the next digit of our solution. 
Result so far: 87964.62723214
Deduct 1792 from 1920 and we're left with 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

The final result is 87964.62723214 with a remainder of 1.28e-07.