We look at the division of 20835949 by 42 
We want to figure out the number of times 20835949 can be divided by 42.

On to step 1:
2 divided by 42 is 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Take the next digit (0) from the dividend and append it to 2, then repeat: 20 / 42

Step 2:
When dividing 20 by 42, we get 0 with a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 20 and we're left with 20.
Include the next digit (8) from the dividend after 20, then repeat: 208 / 42

Moving on to step 3:
42 can be fit into 208 4 times, resulting in a remainder of 40.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we subtract 168 from 208, we get 40.
Fetch the next digit (3) from the dividend, attach it to 40 and continue: 403 / 42

Going ahead to step 4:
403 divided by 42 is 9 with a remainder of 25.
The number 9 becomes the next digit in our result. 
Result so far: 49.0
Subtract 378 from 403 to get 25.
Grab the next digit (5) from the dividend, add it to 25, then carry on: 255 / 42

Let's proceed to step 5:
When dividing 255 by 42, we get 6 with a remainder of 3.
Use 6 as the next digit of our solution. 
Result so far: 496.0
Subtract 252 from 255 to get 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 42

Going ahead to step 6:
42 goes into 39 0 times with a remainder of 39.
The next digit of our result is 0. 
Result so far: 4960.0
The remainder is 39 after subtracting 0 from 39.
Fetch the next digit (4) from the dividend, attach it to 39 and continue: 394 / 42

On to step 7:
42 goes into 394 9 times with a remainder of 16.
The number 9 becomes the next digit in our result. 
Result so far: 49609.0
Deduct 378 from 394 and we're left with 16.
Grab the next digit (9) from the dividend, add it to 16, then carry on: 169 / 42

Going ahead to step 8:
If we divide 169 by 42, we get 4 and a remainder of 1.
The next digit of our result is 4. 
Result so far: 496094.0
Deduct 168 from 169 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 9:
The number 42 fits into 10 0 times, leaving a remainder of 10.
The next digit of our result is 0. 
Result so far: 496094.0
Subtract 0 from 10 to 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.

On to step 10:
The number 42 fits into 100 2 times, leaving a remainder of 16.
Write down 2 as next digit of the result. 
Result so far: 496094.02
Deduct 84 from 100 and we're left 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.

Let's proceed to step 11:
If we divide 160 by 42, we get 3 and a remainder of 34.
The number 3 becomes the next digit in our result. 
Result so far: 496094.023
Subtracting 126 from 160 leaves us 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.

Advancing to step 12:
42 goes into 340 8 times with a remainder of 4.
Put 8 as the next digit of the answer. 
Result so far: 496094.0238
If we subtract 336 from 340, we 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.

Let's proceed to step 13:
42 goes into 40 0 times with a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 496094.0238
The remainder is 40 after subtracting 0 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 14:
400 divided by 42 is 9 with a remainder of 22.
The number 9 becomes the next digit in our result. 
Result so far: 496094.023809
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.

Going ahead to step 15:
If we divide 220 by 42, we get 5 and a remainder of 10.
The next digit of our result is 5. 
Result so far: 496094.0238095
Subtracting 210 from 220 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 16:
When dividing 100 by 42, we get 2 with a remainder of 16.
Record the quotient 2 as the next digit in the result. 
Result so far: 496094.02380952
Subtracting 84 from 100 leaves us 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.

In conclusion, the division gives 496094.02380952 with a balance of 1.6e-08.