81251 divided by 31 
Let's see how many times 31 fits into 81251.

Moving on to step 1:
8 divided by 31 is 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 31

Let's proceed to step 2:
If we divide 81 by 31, we get 2 and a remainder of 19.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Deduct 62 from 81 and we're left with 19.
Take the next digit (2) from the dividend and append it to 19, then repeat: 192 / 31

Moving on to step 3:
When dividing 192 by 31, we get 6 with a remainder of 6.
Use 6 as the next digit of our solution. 
Result so far: 26.0
If we take 186 away from 192, we end up with 6.
Append the next digit (5) from the dividend to 6 and continue with: 65 / 31

Moving on to step 4:
When dividing 65 by 31, we get 2 with a remainder of 3.
The next digit of our result is 2. 
Result so far: 262.0
Subtract 62 from 65 to get 3.
Grab the next digit (1) from the dividend, add it to 3, then carry on: 31 / 31

On to step 5:
When dividing 31 by 31, we get 1 with a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 2621.0
The remainder is 0 after subtracting 31 from 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 6:
0 divided by 31 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 2621.0
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.

Going ahead to step 7:
The number 31 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 2621.0
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.

The final result is 2621.0 with a remainder of 0.0.