280439 divided by 57 
We want to figure out the number of times 280439 can be divided by 57.

Let's proceed to step 1:
57 goes into 2 0 times with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Include the next digit (8) from the dividend after 2, then repeat: 28 / 57

Moving on to step 2:
If we divide 28 by 57, we get 0 and a remainder of 28.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 28, we get 28.
Fetch the next digit (0) from the dividend, attach it to 28 and continue: 280 / 57

Going ahead to step 3:
280 divided by 57 is 4 with a remainder of 52.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Subtract 228 from 280 to get 52.
Bring next digit (4) of the dividend behind the 52 and repeat the process: 524 / 57

Step 4:
The number 57 fits into 524 9 times, leaving a remainder of 11.
Record the quotient 9 as the next digit in the result. 
Result so far: 49.0
Subtracting 513 from 524 leaves us with 11.
Bring next digit (3) of the dividend behind the 11 and repeat the process: 113 / 57

Let's proceed to step 5:
57 goes into 113 1 times with a remainder of 56.
Put 1 as the next digit of the answer. 
Result so far: 491.0
Deduct 57 from 113 and we're left with 56.
Bring next digit (9) of the dividend behind the 56 and repeat the process: 569 / 57

Step 6:
The number 57 fits into 569 9 times, leaving a remainder of 56.
Use 9 as the next digit of our solution. 
Result so far: 4919.0
The remainder is 56 after subtracting 513 from 569.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Moving on to step 7:
When dividing 560 by 57, we get 9 with a remainder of 47.
Write down 9 as next digit of the result. 
Result so far: 4919.9
If we subtract 513 from 560, we get 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Going ahead to step 8:
470 divided by 57 is 8 with a remainder of 14.
The next digit of our result is 8. 
Result so far: 4919.98
Subtracting 456 from 470 leaves us with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 9:
If we divide 140 by 57, we get 2 and a remainder of 26.
Record the quotient 2 as the next digit in the result. 
Result so far: 4919.982
Subtracting 114 from 140 leaves us with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Advancing to step 10:
The number 57 fits into 260 4 times, leaving a remainder of 32.
The number 4 becomes the next digit in our result. 
Result so far: 4919.9824
If we take 228 away from 260, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Moving on to step 11:
57 can be fit into 320 5 times, resulting in a remainder of 35.
Use 5 as the next digit of our solution. 
Result so far: 4919.98245
Deduct 285 from 320 and we're left with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Moving on to step 12:
57 can be fit into 350 6 times, resulting in a remainder of 8.
Put 6 as the next digit of the answer. 
Result so far: 4919.982456
Deduct 342 from 350 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 13:
57 goes into 80 1 times with a remainder of 23.
Put 1 as the next digit of the answer. 
Result so far: 4919.9824561
If we take 57 away from 80, we end up with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Moving on to step 14:
57 can be fit into 230 4 times, resulting in a remainder of 2.
Use 4 as the next digit of our solution. 
Result so far: 4919.98245614
Subtract 228 from 230 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

The final outcome is 4919.98245614, with a leftover of 2e-09.