Let's divide 31293145 by 104
We're looking to find how many times 104 goes into 31293145.

Moving on to step 1:
104 can be fit into 3 0 times, resulting in a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Fetch the next digit (1) from the dividend, attach it to 3 and continue: 31 / 104

Advancing to step 2:
104 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.
Fetch the next digit (2) from the dividend, attach it to 31 and continue: 312 / 104

Advancing to step 3:
104 goes into 312 3 times with a remainder of 0.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we subtract 312 from 312, we get 0.
Take the next digit (9) from the dividend and append it to 0, then repeat: 9 / 104

Step 4:
If we divide 9 by 104, we get 0 and a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 30.0
Subtract 0 from 9 to get 9.
Take the next digit (3) from the dividend and append it to 9, then repeat: 93 / 104

Step 5:
The number 104 fits into 93 0 times, leaving a remainder of 93.
The number 0 becomes the next digit in our result. 
Result so far: 300.0
The remainder is 93 after subtracting 0 from 93.
Append the next digit (1) from the dividend to 93 and continue with: 931 / 104

On to step 6:
The number 104 fits into 931 8 times, leaving a remainder of 99.
Write down 8 as next digit of the result. 
Result so far: 3008.0
If we subtract 832 from 931, we get 99.
Take the next digit (4) from the dividend and append it to 99, then repeat: 994 / 104

On to step 7:
104 can be fit into 994 9 times, resulting in a remainder of 58.
Write down 9 as next digit of the result. 
Result so far: 30089.0
The remainder is 58 after subtracting 936 from 994.
Grab the next digit (5) from the dividend, add it to 58, then carry on: 585 / 104

Going ahead to step 8:
When dividing 585 by 104, we get 5 with a remainder of 65.
Write down 5 as next digit of the result. 
Result so far: 300895.0
If we subtract 520 from 585, we get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Let's proceed to step 9:
104 goes into 650 6 times with a remainder of 26.
Record the quotient 6 as the next digit in the result. 
Result so far: 300895.6
The remainder is 26 after subtracting 624 from 650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Going ahead to step 10:
If we divide 260 by 104, we get 2 and a remainder of 52.
The number 2 becomes the next digit in our result. 
Result so far: 300895.62
The remainder is 52 after subtracting 208 from 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

On to step 11:
When dividing 520 by 104, we get 5 with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 300895.625
Subtract 520 from 520 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 12:
If we divide 0 by 104, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 300895.625
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 13:
When dividing 0 by 104, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 300895.625
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 300895.625, with a leftover of 0.0.