31790091 ÷ 29 
Let's see how many times 29 fits into 31790091.

On to step 1:
The number 29 fits into 3 0 times, leaving a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Append the next digit (1) from the dividend to 3 and continue with: 31 / 29

Going ahead to step 2:
31 divided by 29 is 1 with a remainder of 2.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 29 from 31 leaves us with 2.
Bring next digit (7) of the dividend behind the 2 and repeat the process: 27 / 29

Going ahead to step 3:
When dividing 27 by 29, we get 0 with a remainder of 27.
Use 0 as the next digit of our solution. 
Result so far: 10.0
The remainder is 27 after subtracting 0 from 27.
Take the next digit (9) from the dividend and append it to 27, then repeat: 279 / 29

On to step 4:
The number 29 fits into 279 9 times, leaving a remainder of 18.
The next digit of our result is 9. 
Result so far: 109.0
Subtracting 261 from 279 leaves us with 18.
Grab the next digit (0) from the dividend, add it to 18, then carry on: 180 / 29

Step 5:
If we divide 180 by 29, we get 6 and a remainder of 6.
The number 6 becomes the next digit in our result. 
Result so far: 1096.0
Deduct 174 from 180 and we're left with 6.
Append the next digit (0) from the dividend to 6 and continue with: 60 / 29

On to step 6:
29 goes into 60 2 times with a remainder of 2.
The next digit of our result is 2. 
Result so far: 10962.0
The remainder is 2 after subtracting 58 from 60.
Fetch the next digit (9) from the dividend, attach it to 2 and continue: 29 / 29

Step 7:
29 can be fit into 29 1 times, resulting in a remainder of 0.
Use 1 as the next digit of our solution. 
Result so far: 109621.0
Deduct 29 from 29 and we're left with 0.
Include the next digit (1) from the dividend after 0, then repeat: 1 / 29

Advancing to step 8:
1 divided by 29 is 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 1096210.0
If we take 0 away from 1, we end up 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.

On to step 9:
If we divide 10 by 29, we get 0 and a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 1096210.0
If we take 0 away from 10, we end up 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.

Step 10:
When dividing 100 by 29, we get 3 with a remainder of 13.
The next digit of our result is 3. 
Result so far: 1096210.03
If we subtract 87 from 100, we get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

On to step 11:
The number 29 fits into 130 4 times, leaving a remainder of 14.
Record the quotient 4 as the next digit in the result. 
Result so far: 1096210.034
Subtracting 116 from 130 leaves us with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 12:
140 divided by 29 is 4 with a remainder of 24.
Write down 4 as next digit of the result. 
Result so far: 1096210.0344
Deduct 116 from 140 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

The quotient of the division is 1096210.0344, and the remainder is 0.00024.