Let's divide 789021 by 42
Let's see how many times 42 fits into 789021.

Let's proceed to step 1:
The number 42 fits into 7 0 times, leaving a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Take the next digit (8) from the dividend and append it to 7, then repeat: 78 / 42

Step 2:
When dividing 78 by 42, we get 1 with a remainder of 36.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 42 away from 78, we end up with 36.
Fetch the next digit (9) from the dividend, attach it to 36 and continue: 369 / 42

Advancing to step 3:
42 can be fit into 369 8 times, resulting in a remainder of 33.
Use 8 as the next digit of our solution. 
Result so far: 18.0
Deduct 336 from 369 and we're left with 33.
Append the next digit (0) from the dividend to 33 and continue with: 330 / 42

Advancing to step 4:
When dividing 330 by 42, we get 7 with a remainder of 36.
The next digit of our result is 7. 
Result so far: 187.0
Subtract 294 from 330 to get 36.
Take the next digit (2) from the dividend and append it to 36, then repeat: 362 / 42

Moving on to step 5:
42 can be fit into 362 8 times, resulting in a remainder of 26.
Record the quotient 8 as the next digit in the result. 
Result so far: 1878.0
If we subtract 336 from 362, we get 26.
Include the next digit (1) from the dividend after 26, then repeat: 261 / 42

Going ahead to step 6:
If we divide 261 by 42, we get 6 and a remainder of 9.
Write down 6 as next digit of the result. 
Result so far: 18786.0
Subtract 252 from 261 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Going ahead to step 7:
When dividing 90 by 42, we get 2 with a remainder of 6.
The next digit of our result is 2. 
Result so far: 18786.2
The remainder is 6 after subtracting 84 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 8:
60 divided by 42 is 1 with a remainder of 18.
Use 1 as the next digit of our solution. 
Result so far: 18786.21
Deduct 42 from 60 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.

Step 9:
42 can be fit into 180 4 times, resulting in a remainder of 12.
Use 4 as the next digit of our solution. 
Result so far: 18786.214
If we take 168 away from 180, we end up 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.

On to step 10:
42 can be fit into 120 2 times, resulting in a remainder of 36.
Record the quotient 2 as the next digit in the result. 
Result so far: 18786.2142
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.

Let's proceed to step 11:
When dividing 360 by 42, we get 8 with a remainder of 24.
Use 8 as the next digit of our solution. 
Result so far: 18786.21428
Deduct 336 from 360 and we're left 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.

Moving on to step 12:
42 goes into 240 5 times with a remainder of 30.
Use 5 as the next digit of our solution. 
Result so far: 18786.214285
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 13:
42 can be fit into 300 7 times, resulting in a remainder of 6.
Put 7 as the next digit of the answer. 
Result so far: 18786.2142857
If we take 294 away from 300, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 14:
60 divided by 42 is 1 with a remainder of 18.
The number 1 becomes the next digit in our result. 
Result so far: 18786.21428571
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.

In conclusion, the division gives 18786.21428571 with a balance of 1.8e-08.