We're dividing 310999 by 42 
Our goal is to divide 310999 by 42.

On to step 1:
3 divided by 42 is 0 with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Fetch the next digit (1) from the dividend, attach it to 3 and continue: 31 / 42

Advancing to step 2:
42 goes into 31 0 times with a remainder of 31.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 31, we get 31.
Grab the next digit (0) from the dividend, add it to 31, then carry on: 310 / 42

On to step 3:
When dividing 310 by 42, we get 7 with a remainder of 16.
Put 7 as the next digit of the answer. 
Result so far: 7.0
If we take 294 away from 310, we end up with 16.
Include the next digit (9) from the dividend after 16, then repeat: 169 / 42

Moving on to step 4:
When dividing 169 by 42, we get 4 with a remainder of 1.
The number 4 becomes the next digit in our result. 
Result so far: 74.0
Deduct 168 from 169 and we're left with 1.
Bring next digit (9) of the dividend behind the 1 and repeat the process: 19 / 42

Let's proceed to step 5:
42 goes into 19 0 times with a remainder of 19.
Put 0 as the next digit of the answer. 
Result so far: 740.0
If we subtract 0 from 19, we get 19.
Append the next digit (9) from the dividend to 19 and continue with: 199 / 42

Moving on to step 6:
If we divide 199 by 42, we get 4 and a remainder of 31.
Write down 4 as next digit of the result. 
Result so far: 7404.0
Deduct 168 from 199 and we're left with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Advancing to step 7:
42 can be fit into 310 7 times, resulting in a remainder of 16.
Use 7 as the next digit of our solution. 
Result so far: 7404.7
Subtract 294 from 310 to 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.

Step 8:
The number 42 fits into 160 3 times, leaving a remainder of 34.
Put 3 as the next digit of the answer. 
Result so far: 7404.73
Subtract 126 from 160 to get 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 9:
340 divided by 42 is 8 with a remainder of 4.
Record the quotient 8 as the next digit in the result. 
Result so far: 7404.738
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.

Moving on to step 10:
40 divided by 42 is 0 with a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 7404.738
Deduct 0 from 40 and we're left 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 11:
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: 7404.73809
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.

Going ahead to step 12:
42 goes into 220 5 times with a remainder of 10.
The next digit of our result is 5. 
Result so far: 7404.738095
The remainder is 10 after subtracting 210 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 13:
42 can be fit into 100 2 times, resulting in a remainder of 16.
Put 2 as the next digit of the answer. 
Result so far: 7404.7380952
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.

Advancing to step 14:
The number 42 fits into 160 3 times, leaving a remainder of 34.
The number 3 becomes the next digit in our result. 
Result so far: 7404.73809523
Subtract 126 from 160 to get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

The final outcome is 7404.73809523, with a leftover of 3.4e-08.