We divide 406587 by 42
We want to divide 406587 by 42.

Going ahead to step 1:
The number 42 fits into 4 0 times, leaving a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Grab the next digit (0) from the dividend, add it to 4, then carry on: 40 / 42

Step 2:
42 can be fit into 40 0 times, resulting in a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 40 and we're left with 40.
Bring next digit (6) of the dividend behind the 40 and repeat the process: 406 / 42

On to step 3:
42 can be fit into 406 9 times, resulting in a remainder of 28.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
If we take 378 away from 406, we end up with 28.
Take the next digit (5) from the dividend and append it to 28, then repeat: 285 / 42

Moving on to step 4:
42 goes into 285 6 times with a remainder of 33.
Use 6 as the next digit of our solution. 
Result so far: 96.0
If we subtract 252 from 285, we get 33.
Take the next digit (8) from the dividend and append it to 33, then repeat: 338 / 42

Let's proceed to step 5:
338 divided by 42 is 8 with a remainder of 2.
Record the quotient 8 as the next digit in the result. 
Result so far: 968.0
The remainder is 2 after subtracting 336 from 338.
Append the next digit (7) from the dividend to 2 and continue with: 27 / 42

Step 6:
42 goes into 27 0 times with a remainder of 27.
The number 0 becomes the next digit in our result. 
Result so far: 9680.0
Subtract 0 from 27 to get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

On to step 7:
The number 42 fits into 270 6 times, leaving a remainder of 18.
Record the quotient 6 as the next digit in the result. 
Result so far: 9680.6
Deduct 252 from 270 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Let's proceed to step 8:
180 divided by 42 is 4 with a remainder of 12.
The number 4 becomes the next digit in our result. 
Result so far: 9680.64
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.

Let's proceed to step 9:
If we divide 120 by 42, we get 2 and a remainder of 36.
Record the quotient 2 as the next digit in the result. 
Result so far: 9680.642
Subtracting 84 from 120 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Step 10:
When dividing 360 by 42, we get 8 with a remainder of 24.
Write down 8 as next digit of the result. 
Result so far: 9680.6428
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.

Moving on to 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: 9680.64285
If we subtract 210 from 240, we get 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:
The number 42 fits into 300 7 times, leaving a remainder of 6.
Use 7 as the next digit of our solution. 
Result so far: 9680.642857
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.

Let's proceed to step 13:
The number 42 fits into 60 1 times, leaving a remainder of 18.
Write down 1 as next digit of the result. 
Result so far: 9680.6428571
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.

Advancing to step 14:
42 goes into 180 4 times with a remainder of 12.
Use 4 as the next digit of our solution. 
Result so far: 9680.64285714
If we subtract 168 from 180, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

The final result is 9680.64285714 with a remainder of 1.2e-08.