We divide 251973 by 90
We want to figure out the number of times 251973 can be divided by 90.

Moving on to step 1:
If we divide 2 by 90, we get 0 and a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Include the next digit (5) from the dividend after 2, then repeat: 25 / 90

Let's proceed to step 2:
The number 90 fits into 25 0 times, leaving a remainder of 25.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 25 leaves us with 25.
Fetch the next digit (1) from the dividend, attach it to 25 and continue: 251 / 90

On to step 3:
90 can be fit into 251 2 times, resulting in a remainder of 71.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtracting 180 from 251 leaves us with 71.
Bring next digit (9) of the dividend behind the 71 and repeat the process: 719 / 90

Step 4:
The number 90 fits into 719 7 times, leaving a remainder of 89.
Write down 7 as next digit of the result. 
Result so far: 27.0
If we take 630 away from 719, we end up with 89.
Bring next digit (7) of the dividend behind the 89 and repeat the process: 897 / 90

Going ahead to step 5:
90 can be fit into 897 9 times, resulting in a remainder of 87.
Put 9 as the next digit of the answer. 
Result so far: 279.0
If we subtract 810 from 897, we get 87.
Append the next digit (3) from the dividend to 87 and continue with: 873 / 90

Step 6:
90 goes into 873 9 times with a remainder of 63.
Record the quotient 9 as the next digit in the result. 
Result so far: 2799.0
If we take 810 away from 873, we end up with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Going ahead to step 7:
90 can be fit into 630 7 times, resulting in a remainder of 0.
Use 7 as the next digit of our solution. 
Result so far: 2799.7
If we subtract 630 from 630, 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.

Moving on to step 8:
When dividing 0 by 90, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 2799.7
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 9:
When dividing 0 by 90, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 2799.7
Subtract 0 from 0 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.

The quotient of the division is 2799.7, and the remainder is 0.0.