42021843 ÷ 797 
We're looking to find how many times 797 goes into 42021843.

On to step 1:
If we divide 4 by 797, we get 0 and a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Include the next digit (2) from the dividend after 4, then repeat: 42 / 797

Moving on to step 2:
42 divided by 797 is 0 with a remainder of 42.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 42 leaves us with 42.
Grab the next digit (0) from the dividend, add it to 42, then carry on: 420 / 797

Advancing to step 3:
797 can be fit into 420 0 times, resulting in a remainder of 420.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 420 to get 420.
Include the next digit (2) from the dividend after 420, then repeat: 4202 / 797

On to step 4:
The number 797 fits into 4202 5 times, leaving a remainder of 217.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
Subtract 3985 from 4202 to get 217.
Bring next digit (1) of the dividend behind the 217 and repeat the process: 2171 / 797

Let's proceed to step 5:
797 goes into 2171 2 times with a remainder of 577.
The number 2 becomes the next digit in our result. 
Result so far: 52.0
If we subtract 1594 from 2171, we get 577.
Include the next digit (8) from the dividend after 577, then repeat: 5778 / 797

Step 6:
797 goes into 5778 7 times with a remainder of 199.
The next digit of our result is 7. 
Result so far: 527.0
The remainder is 199 after subtracting 5579 from 5778.
Take the next digit (4) from the dividend and append it to 199, then repeat: 1994 / 797

Step 7:
When dividing 1994 by 797, we get 2 with a remainder of 400.
Put 2 as the next digit of the answer. 
Result so far: 5272.0
Subtract 1594 from 1994 to get 400.
Grab the next digit (3) from the dividend, add it to 400, then carry on: 4003 / 797

Moving on to step 8:
797 goes into 4003 5 times with a remainder of 18.
The number 5 becomes the next digit in our result. 
Result so far: 52725.0
Deduct 3985 from 4003 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.

On to step 9:
797 goes into 180 0 times with a remainder of 180.
The next digit of our result is 0. 
Result so far: 52725.0
Deduct 0 from 180 and we're left with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Advancing to step 10:
1800 divided by 797 is 2 with a remainder of 206.
The next digit of our result is 2. 
Result so far: 52725.02
Subtract 1594 from 1800 to get 206.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2060, and continue the process.

Let's proceed to step 11:
797 goes into 2060 2 times with a remainder of 466.
Use 2 as the next digit of our solution. 
Result so far: 52725.022
Deduct 1594 from 2060 and we're left with 466.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4660, and continue the process.

After the division, we end up with 52725.022 and a remainder of 0.0466.