We're dividing 780849 by 42 
Let's see how many times 42 fits into 780849.

On to step 1:
The number 42 fits into 7 0 times, leaving a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Include the next digit (8) from the dividend after 7, then repeat: 78 / 42

On to step 2:
If we divide 78 by 42, we get 1 and a remainder of 36.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 42 from 78 and we're left with 36.
Append the next digit (0) from the dividend to 36 and continue with: 360 / 42

Step 3:
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: 18.0
Subtracting 336 from 360 leaves us with 24.
Take the next digit (8) from the dividend and append it to 24, then repeat: 248 / 42

Moving on to step 4:
42 can be fit into 248 5 times, resulting in a remainder of 38.
Put 5 as the next digit of the answer. 
Result so far: 185.0
Deduct 210 from 248 and we're left with 38.
Include the next digit (4) from the dividend after 38, then repeat: 384 / 42

Moving on to step 5:
The number 42 fits into 384 9 times, leaving a remainder of 6.
The number 9 becomes the next digit in our result. 
Result so far: 1859.0
If we take 378 away from 384, we end up with 6.
Bring next digit (9) of the dividend behind the 6 and repeat the process: 69 / 42

Going ahead to step 6:
If we divide 69 by 42, we get 1 and a remainder of 27.
Put 1 as the next digit of the answer. 
Result so far: 18591.0
Subtracting 42 from 69 leaves us with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Advancing 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: 18591.6
If we take 252 away from 270, we end up 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.

On to step 8:
42 goes into 180 4 times with a remainder of 12.
Put 4 as the next digit of the answer. 
Result so far: 18591.64
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.

Let's proceed to step 9:
When dividing 120 by 42, we get 2 with a remainder of 36.
Use 2 as the next digit of our solution. 
Result so far: 18591.642
The remainder is 36 after subtracting 84 from 120.
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.
Record the quotient 8 as the next digit in the result. 
Result so far: 18591.6428
Subtracting 336 from 360 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 11:
If we divide 240 by 42, we get 5 and a remainder of 30.
Use 5 as the next digit of our solution. 
Result so far: 18591.64285
Deduct 210 from 240 and we're left 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.

Advancing to step 12:
The number 42 fits into 300 7 times, leaving a remainder of 6.
The number 7 becomes the next digit in our result. 
Result so far: 18591.642857
The remainder is 6 after subtracting 294 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 13:
42 can be fit into 60 1 times, resulting in a remainder of 18.
Put 1 as the next digit of the answer. 
Result so far: 18591.6428571
If we subtract 42 from 60, we 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.

Moving on to step 14:
42 goes into 180 4 times with a remainder of 12.
Record the quotient 4 as the next digit in the result. 
Result so far: 18591.64285714
Deduct 168 from 180 and we're left 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.

In conclusion, the division gives 18591.64285714 with a balance of 1.2e-08.