We divide 830542 by 42
We want to figure out the number of times 830542 can be divided by 42.

Advancing to step 1:
If we divide 8 by 42, we get 0 and a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Include the next digit (3) from the dividend after 8, then repeat: 83 / 42

Advancing to step 2:
83 divided by 42 is 1 with a remainder of 41.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 42 from 83 leaves us with 41.
Bring next digit (0) of the dividend behind the 41 and repeat the process: 410 / 42

Moving on to step 3:
If we divide 410 by 42, we get 9 and a remainder of 32.
Put 9 as the next digit of the answer. 
Result so far: 19.0
If we subtract 378 from 410, we get 32.
Take the next digit (5) from the dividend and append it to 32, then repeat: 325 / 42

Let's proceed to step 4:
42 goes into 325 7 times with a remainder of 31.
Record the quotient 7 as the next digit in the result. 
Result so far: 197.0
If we subtract 294 from 325, we get 31.
Include the next digit (4) from the dividend after 31, then repeat: 314 / 42

Let's proceed to step 5:
If we divide 314 by 42, we get 7 and a remainder of 20.
Put 7 as the next digit of the answer. 
Result so far: 1977.0
Deduct 294 from 314 and we're left with 20.
Grab the next digit (2) from the dividend, add it to 20, then carry on: 202 / 42

Step 6:
The number 42 fits into 202 4 times, leaving a remainder of 34.
The number 4 becomes the next digit in our result. 
Result so far: 19774.0
Deduct 168 from 202 and we're left with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Going ahead to step 7:
When dividing 340 by 42, we get 8 with a remainder of 4.
The number 8 becomes the next digit in our result. 
Result so far: 19774.8
Subtracting 336 from 340 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 8:
If we divide 40 by 42, we get 0 and a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 19774.8
Subtracting 0 from 40 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 9:
If we divide 400 by 42, we get 9 and a remainder of 22.
Use 9 as the next digit of our solution. 
Result so far: 19774.809
If we subtract 378 from 400, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Step 10:
When dividing 220 by 42, we get 5 with a remainder of 10.
Use 5 as the next digit of our solution. 
Result so far: 19774.8095
If we subtract 210 from 220, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 11:
The number 42 fits into 100 2 times, leaving a remainder of 16.
Use 2 as the next digit of our solution. 
Result so far: 19774.80952
If we take 84 away from 100, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 12:
When dividing 160 by 42, we get 3 with a remainder of 34.
The next digit of our result is 3. 
Result so far: 19774.809523
Deduct 126 from 160 and we're left with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Let's proceed to step 13:
The number 42 fits into 340 8 times, leaving a remainder of 4.
Record the quotient 8 as the next digit in the result. 
Result so far: 19774.8095238
Subtract 336 from 340 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 14:
42 can be fit into 40 0 times, resulting in a remainder of 40.
The next digit of our result is 0. 
Result so far: 19774.8095238
If we take 0 away from 40, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

The final outcome is 19774.8095238, with a leftover of 4e-08.