We're dividing 251079 by 90 
We want to divide 251079 by 90.

Moving on to step 1:
When dividing 2 by 90, we get 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Append the next digit (5) from the dividend to 2 and continue with: 25 / 90

Step 2:
90 goes into 25 0 times with a remainder of 25.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 25 after subtracting 0 from 25.
Take the next digit (1) from the dividend and append it to 25, then repeat: 251 / 90

Let's proceed to step 3:
90 goes into 251 2 times with a remainder of 71.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtracting 180 from 251 leaves us with 71.
Include the next digit (0) from the dividend after 71, then repeat: 710 / 90

Going ahead to step 4:
90 can be fit into 710 7 times, resulting in a remainder of 80.
The next digit of our result is 7. 
Result so far: 27.0
Subtract 630 from 710 to get 80.
Include the next digit (7) from the dividend after 80, then repeat: 807 / 90

Moving on to step 5:
90 goes into 807 8 times with a remainder of 87.
Put 8 as the next digit of the answer. 
Result so far: 278.0
The remainder is 87 after subtracting 720 from 807.
Bring next digit (9) of the dividend behind the 87 and repeat the process: 879 / 90

Going ahead to step 6:
If we divide 879 by 90, we get 9 and a remainder of 69.
Record the quotient 9 as the next digit in the result. 
Result so far: 2789.0
Deduct 810 from 879 and we're left with 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Step 7:
When dividing 690 by 90, we get 7 with a remainder of 60.
The next digit of our result is 7. 
Result so far: 2789.7
The remainder is 60 after subtracting 630 from 690.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Moving on to step 8:
90 can be fit into 600 6 times, resulting in a remainder of 60.
Record the quotient 6 as the next digit in the result. 
Result so far: 2789.76
Subtract 540 from 600 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 9:
The number 90 fits into 600 6 times, leaving a remainder of 60.
Write down 6 as next digit of the result. 
Result so far: 2789.766
Deduct 540 from 600 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

The final outcome is 2789.766, with a leftover of 0.006.