768390 divided by 31 
We're looking to find how many times 31 goes into 768390.

On to step 1:
31 goes into 7 0 times with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Fetch the next digit (6) from the dividend, attach it to 7 and continue: 76 / 31

Advancing to step 2:
31 can be fit into 76 2 times, resulting in a remainder of 14.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtracting 62 from 76 leaves us with 14.
Bring next digit (8) of the dividend behind the 14 and repeat the process: 148 / 31

On to step 3:
The number 31 fits into 148 4 times, leaving a remainder of 24.
The number 4 becomes the next digit in our result. 
Result so far: 24.0
Deduct 124 from 148 and we're left with 24.
Grab the next digit (3) from the dividend, add it to 24, then carry on: 243 / 31

Step 4:
31 goes into 243 7 times with a remainder of 26.
Use 7 as the next digit of our solution. 
Result so far: 247.0
Subtract 217 from 243 to get 26.
Take the next digit (9) from the dividend and append it to 26, then repeat: 269 / 31

Advancing to step 5:
31 goes into 269 8 times with a remainder of 21.
Use 8 as the next digit of our solution. 
Result so far: 2478.0
The remainder is 21 after subtracting 248 from 269.
Append the next digit (0) from the dividend to 21 and continue with: 210 / 31

On to step 6:
210 divided by 31 is 6 with a remainder of 24.
Put 6 as the next digit of the answer. 
Result so far: 24786.0
Subtract 186 from 210 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 7:
31 can be fit into 240 7 times, resulting in a remainder of 23.
Record the quotient 7 as the next digit in the result. 
Result so far: 24786.7
If we subtract 217 from 240, we get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Going ahead to step 8:
When dividing 230 by 31, we get 7 with a remainder of 13.
Put 7 as the next digit of the answer. 
Result so far: 24786.77
Subtracting 217 from 230 leaves us with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

The final outcome is 24786.77, with a leftover of 0.013.