57053983 ÷ 408 
Our goal is to divide 57053983 by 408.

Let's proceed to step 1:
408 can be fit into 5 0 times, resulting in a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Take the next digit (7) from the dividend and append it to 5, then repeat: 57 / 408

Moving on to step 2:
57 divided by 408 is 0 with a remainder of 57.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 57 after subtracting 0 from 57.
Bring next digit (0) of the dividend behind the 57 and repeat the process: 570 / 408

Advancing to step 3:
When dividing 570 by 408, we get 1 with a remainder of 162.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 408 from 570 leaves us with 162.
Bring next digit (5) of the dividend behind the 162 and repeat the process: 1625 / 408

On to step 4:
When dividing 1625 by 408, we get 3 with a remainder of 401.
Put 3 as the next digit of the answer. 
Result so far: 13.0
If we subtract 1224 from 1625, we get 401.
Append the next digit (3) from the dividend to 401 and continue with: 4013 / 408

Going ahead to step 5:
4013 divided by 408 is 9 with a remainder of 341.
Write down 9 as next digit of the result. 
Result so far: 139.0
If we subtract 3672 from 4013, we get 341.
Include the next digit (9) from the dividend after 341, then repeat: 3419 / 408

Let's proceed to step 6:
If we divide 3419 by 408, we get 8 and a remainder of 155.
Write down 8 as next digit of the result. 
Result so far: 1398.0
Deduct 3264 from 3419 and we're left with 155.
Include the next digit (8) from the dividend after 155, then repeat: 1558 / 408

Moving on to step 7:
408 can be fit into 1558 3 times, resulting in a remainder of 334.
The number 3 becomes the next digit in our result. 
Result so far: 13983.0
Subtract 1224 from 1558 to get 334.
Fetch the next digit (3) from the dividend, attach it to 334 and continue: 3343 / 408

On to step 8:
The number 408 fits into 3343 8 times, leaving a remainder of 79.
The next digit of our result is 8. 
Result so far: 139838.0
Subtract 3264 from 3343 to get 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

Going ahead to step 9:
408 can be fit into 790 1 times, resulting in a remainder of 382.
Put 1 as the next digit of the answer. 
Result so far: 139838.1
Deduct 408 from 790 and we're left with 382.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3820, and continue the process.

Moving on to step 10:
408 can be fit into 3820 9 times, resulting in a remainder of 148.
The number 9 becomes the next digit in our result. 
Result so far: 139838.19
Subtract 3672 from 3820 to get 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

Advancing to step 11:
The number 408 fits into 1480 3 times, leaving a remainder of 256.
Write down 3 as next digit of the result. 
Result so far: 139838.193
If we take 1224 away from 1480, we end up with 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

Let's proceed to step 12:
If we divide 2560 by 408, we get 6 and a remainder of 112.
Put 6 as the next digit of the answer. 
Result so far: 139838.1936
Subtracting 2448 from 2560 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.

Step 13:
If we divide 1120 by 408, we get 2 and a remainder of 304.
Use 2 as the next digit of our solution. 
Result so far: 139838.19362
If we take 816 away from 1120, we end up with 304.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

Let's proceed to step 14:
408 can be fit into 3040 7 times, resulting in a remainder of 184.
Use 7 as the next digit of our solution. 
Result so far: 139838.193627
Subtracting 2856 from 3040 leaves us with 184.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

Going ahead to step 15:
The number 408 fits into 1840 4 times, leaving a remainder of 208.
Write down 4 as next digit of the result. 
Result so far: 139838.1936274
Subtracting 1632 from 1840 leaves us with 208.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

Moving on to step 16:
2080 divided by 408 is 5 with a remainder of 40.
The number 5 becomes the next digit in our result. 
Result so far: 139838.19362745
If we take 2040 away from 2080, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

After the division, we end up with 139838.19362745 and a remainder of 4e-08.