637874 divided by 90 
Let's see how many times 90 fits into 637874.

On to step 1:
When dividing 6 by 90, we get 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Bring next digit (3) of the dividend behind the 6 and repeat the process: 63 / 90

Going ahead to step 2:
90 can be fit into 63 0 times, resulting in a remainder of 63.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 63 to get 63.
Grab the next digit (7) from the dividend, add it to 63, then carry on: 637 / 90

Advancing to step 3:
90 can be fit into 637 7 times, resulting in a remainder of 7.
Write down 7 as next digit of the result. 
Result so far: 7.0
Subtracting 630 from 637 leaves us with 7.
Take the next digit (8) from the dividend and append it to 7, then repeat: 78 / 90

Going ahead to step 4:
90 goes into 78 0 times with a remainder of 78.
The number 0 becomes the next digit in our result. 
Result so far: 70.0
The remainder is 78 after subtracting 0 from 78.
Bring next digit (7) of the dividend behind the 78 and repeat the process: 787 / 90

Let's proceed to step 5:
90 can be fit into 787 8 times, resulting in a remainder of 67.
Use 8 as the next digit of our solution. 
Result so far: 708.0
If we subtract 720 from 787, we get 67.
Grab the next digit (4) from the dividend, add it to 67, then carry on: 674 / 90

Going ahead to step 6:
The number 90 fits into 674 7 times, leaving a remainder of 44.
Use 7 as the next digit of our solution. 
Result so far: 7087.0
Subtracting 630 from 674 leaves us with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Going ahead to step 7:
90 goes into 440 4 times with a remainder of 80.
The next digit of our result is 4. 
Result so far: 7087.4
Subtract 360 from 440 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Advancing to step 8:
When dividing 800 by 90, we get 8 with a remainder of 80.
The next digit of our result is 8. 
Result so far: 7087.48
The remainder is 80 after subtracting 720 from 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Let's proceed to step 9:
If we divide 800 by 90, we get 8 and a remainder of 80.
Use 8 as the next digit of our solution. 
Result so far: 7087.488
Subtracting 720 from 800 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

The final outcome is 7087.488, with a leftover of 0.008.