7990 divided by 23 
We want to divide 7990 by 23.

On to step 1:
23 can be fit into 7 0 times, resulting in a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Fetch the next digit (9) from the dividend, attach it to 7 and continue: 79 / 23

Advancing to step 2:
If we divide 79 by 23, we get 3 and a remainder of 10.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we take 69 away from 79, we end up with 10.
Append the next digit (9) from the dividend to 10 and continue with: 109 / 23

Advancing to step 3:
109 divided by 23 is 4 with a remainder of 17.
Write down 4 as next digit of the result. 
Result so far: 34.0
If we subtract 92 from 109, we get 17.
Bring next digit (0) of the dividend behind the 17 and repeat the process: 170 / 23

Advancing to step 4:
The number 23 fits into 170 7 times, leaving a remainder of 9.
Write down 7 as next digit of the result. 
Result so far: 347.0
If we take 161 away from 170, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Let's proceed to step 5:
23 goes into 90 3 times with a remainder of 21.
The next digit of our result is 3. 
Result so far: 347.3
If we take 69 away from 90, we end up with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

On to step 6:
23 goes into 210 9 times with a remainder of 3.
Write down 9 as next digit of the result. 
Result so far: 347.39
Subtract 207 from 210 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 7:
If we divide 30 by 23, we get 1 and a remainder of 7.
The next digit of our result is 1. 
Result so far: 347.391
If we subtract 23 from 30, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 8:
70 divided by 23 is 3 with a remainder of 1.
Record the quotient 3 as the next digit in the result. 
Result so far: 347.3913
The remainder is 1 after subtracting 69 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 9:
23 goes into 10 0 times with a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 347.3913
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.

Advancing to step 10:
If we divide 100 by 23, we get 4 and a remainder of 8.
Record the quotient 4 as the next digit in the result. 
Result so far: 347.391304
The remainder is 8 after subtracting 92 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 11:
If we divide 80 by 23, we get 3 and a remainder of 11.
Write down 3 as next digit of the result. 
Result so far: 347.3913043
The remainder is 11 after subtracting 69 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Moving on to step 12:
110 divided by 23 is 4 with a remainder of 18.
Record the quotient 4 as the next digit in the result. 
Result so far: 347.39130434
Subtract 92 from 110 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

The final result is 347.39130434 with a remainder of 1.8e-08.