We're dividing 990739 by 42 
We want to figure out the number of times 990739 can be divided by 42.

Advancing to step 1:
The number 42 fits into 9 0 times, leaving a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Append the next digit (9) from the dividend to 9 and continue with: 99 / 42

On to step 2:
The number 42 fits into 99 2 times, leaving a remainder of 15.
The next digit of our result is 2. 
Result so far: 2.0
If we subtract 84 from 99, we get 15.
Grab the next digit (0) from the dividend, add it to 15, then carry on: 150 / 42

On to step 3:
150 divided by 42 is 3 with a remainder of 24.
Write down 3 as next digit of the result. 
Result so far: 23.0
If we take 126 away from 150, we end up with 24.
Bring next digit (7) of the dividend behind the 24 and repeat the process: 247 / 42

Advancing to step 4:
The number 42 fits into 247 5 times, leaving a remainder of 37.
Record the quotient 5 as the next digit in the result. 
Result so far: 235.0
The remainder is 37 after subtracting 210 from 247.
Take the next digit (3) from the dividend and append it to 37, then repeat: 373 / 42

Going ahead to step 5:
When dividing 373 by 42, we get 8 with a remainder of 37.
Record the quotient 8 as the next digit in the result. 
Result so far: 2358.0
Deduct 336 from 373 and we're left with 37.
Grab the next digit (9) from the dividend, add it to 37, then carry on: 379 / 42

Let's proceed to step 6:
379 divided by 42 is 9 with a remainder of 1.
Write down 9 as next digit of the result. 
Result so far: 23589.0
Subtracting 378 from 379 leaves us 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.

Step 7:
42 goes into 10 0 times with a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 23589.0
If we subtract 0 from 10, 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.

Moving on to step 8:
100 divided by 42 is 2 with a remainder of 16.
Write down 2 as next digit of the result. 
Result so far: 23589.02
If we subtract 84 from 100, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 9:
When dividing 160 by 42, we get 3 with a remainder of 34.
Record the quotient 3 as the next digit in the result. 
Result so far: 23589.023
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.

Moving on to step 10:
42 goes into 340 8 times with a remainder of 4.
The number 8 becomes the next digit in our result. 
Result so far: 23589.0238
If we take 336 away from 340, we end up 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.

Going ahead to step 11:
42 can be fit into 40 0 times, resulting in a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 23589.0238
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 12:
The number 42 fits into 400 9 times, leaving a remainder of 22.
Write down 9 as next digit of the result. 
Result so far: 23589.023809
Deduct 378 from 400 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Moving on to step 13:
If we divide 220 by 42, we get 5 and a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 23589.0238095
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.

Advancing to step 14:
42 goes into 100 2 times with a remainder of 16.
Record the quotient 2 as the next digit in the result. 
Result so far: 23589.02380952
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.

After the division, we end up with 23589.02380952 and a remainder of 1.6e-08.