516816 divided by 42 
Let's see how many times 42 fits into 516816.

Advancing to step 1:
5 divided by 42 is 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Include the next digit (1) from the dividend after 5, then repeat: 51 / 42

On to step 2:
42 goes into 51 1 times with a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 42 away from 51, we end up with 9.
Take the next digit (6) from the dividend and append it to 9, then repeat: 96 / 42

On to step 3:
96 divided by 42 is 2 with a remainder of 12.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
Subtracting 84 from 96 leaves us with 12.
Append the next digit (8) from the dividend to 12 and continue with: 128 / 42

On to step 4:
42 goes into 128 3 times with a remainder of 2.
Record the quotient 3 as the next digit in the result. 
Result so far: 123.0
Subtracting 126 from 128 leaves us with 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 42

Moving on to step 5:
If we divide 21 by 42, we get 0 and a remainder of 21.
Use 0 as the next digit of our solution. 
Result so far: 1230.0
Subtract 0 from 21 to get 21.
Append the next digit (6) from the dividend to 21 and continue with: 216 / 42

Let's proceed to step 6:
42 goes into 216 5 times with a remainder of 6.
Use 5 as the next digit of our solution. 
Result so far: 12305.0
Subtract 210 from 216 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 7:
If we divide 60 by 42, we get 1 and a remainder of 18.
Record the quotient 1 as the next digit in the result. 
Result so far: 12305.1
The remainder is 18 after subtracting 42 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Advancing to step 8:
42 goes into 180 4 times with a remainder of 12.
Use 4 as the next digit of our solution. 
Result so far: 12305.14
The remainder is 12 after subtracting 168 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 9:
When dividing 120 by 42, we get 2 with a remainder of 36.
Put 2 as the next digit of the answer. 
Result so far: 12305.142
Subtract 84 from 120 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

On to step 10:
If we divide 360 by 42, we get 8 and a remainder of 24.
The number 8 becomes the next digit in our result. 
Result so far: 12305.1428
If we subtract 336 from 360, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 11:
240 divided by 42 is 5 with a remainder of 30.
Use 5 as the next digit of our solution. 
Result so far: 12305.14285
If we take 210 away from 240, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 12:
300 divided by 42 is 7 with a remainder of 6.
Use 7 as the next digit of our solution. 
Result so far: 12305.142857
Subtract 294 from 300 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 13:
When dividing 60 by 42, we get 1 with a remainder of 18.
Write down 1 as next digit of the result. 
Result so far: 12305.1428571
Subtract 42 from 60 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 14:
If we divide 180 by 42, we get 4 and a remainder of 12.
Record the quotient 4 as the next digit in the result. 
Result so far: 12305.14285714
Subtracting 168 from 180 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Our division results in 12305.14285714 with a remaining 1.2e-08.