420392 ÷ 57 
We want to divide 420392 by 57.

Moving on to step 1:
57 can be fit into 4 0 times, resulting in a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 57

Moving on to step 2:
The number 57 fits into 42 0 times, leaving a remainder of 42.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 42, we get 42.
Include the next digit (0) from the dividend after 42, then repeat: 420 / 57

On to step 3:
420 divided by 57 is 7 with a remainder of 21.
Put 7 as the next digit of the answer. 
Result so far: 7.0
Subtracting 399 from 420 leaves us with 21.
Take the next digit (3) from the dividend and append it to 21, then repeat: 213 / 57

Going ahead to step 4:
57 goes into 213 3 times with a remainder of 42.
Write down 3 as next digit of the result. 
Result so far: 73.0
Subtract 171 from 213 to get 42.
Fetch the next digit (9) from the dividend, attach it to 42 and continue: 429 / 57

Let's proceed to step 5:
57 goes into 429 7 times with a remainder of 30.
Put 7 as the next digit of the answer. 
Result so far: 737.0
If we subtract 399 from 429, we get 30.
Take the next digit (2) from the dividend and append it to 30, then repeat: 302 / 57

Let's proceed to step 6:
57 can be fit into 302 5 times, resulting in a remainder of 17.
The next digit of our result is 5. 
Result so far: 7375.0
Subtract 285 from 302 to get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Step 7:
If we divide 170 by 57, we get 2 and a remainder of 56.
Write down 2 as next digit of the result. 
Result so far: 7375.2
Deduct 114 from 170 and we're left with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Step 8:
If we divide 560 by 57, we get 9 and a remainder of 47.
The number 9 becomes the next digit in our result. 
Result so far: 7375.29
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 9:
When dividing 470 by 57, we get 8 with a remainder of 14.
Record the quotient 8 as the next digit in the result. 
Result so far: 7375.298
The remainder is 14 after subtracting 456 from 470.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 10:
57 can be fit into 140 2 times, resulting in a remainder of 26.
The next digit of our result is 2. 
Result so far: 7375.2982
The remainder is 26 after subtracting 114 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Let's proceed to step 11:
If we divide 260 by 57, we get 4 and a remainder of 32.
The number 4 becomes the next digit in our result. 
Result so far: 7375.29824
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.

On to step 12:
When dividing 320 by 57, we get 5 with a remainder of 35.
Write down 5 as next digit of the result. 
Result so far: 7375.298245
Subtract 285 from 320 to get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

On to step 13:
The number 57 fits into 350 6 times, leaving a remainder of 8.
The next digit of our result is 6. 
Result so far: 7375.2982456
If we take 342 away from 350, we end up 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.

Moving on to step 14:
The number 57 fits into 80 1 times, leaving a remainder of 23.
Use 1 as the next digit of our solution. 
Result so far: 7375.29824561
Subtract 57 from 80 to get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

The quotient of the division is 7375.29824561, and the remainder is 2.3e-08.