Let's divide 90632937 by 646
We want to divide 90632937 by 646.

Going ahead to step 1:
The number 646 fits into 9 0 times, leaving a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Fetch the next digit (0) from the dividend, attach it to 9 and continue: 90 / 646

On to step 2:
90 divided by 646 is 0 with a remainder of 90.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 90 leaves us with 90.
Bring next digit (6) of the dividend behind the 90 and repeat the process: 906 / 646

On to step 3:
646 goes into 906 1 times with a remainder of 260.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 646 from 906 leaves us with 260.
Bring next digit (3) of the dividend behind the 260 and repeat the process: 2603 / 646

Let's proceed to step 4:
2603 divided by 646 is 4 with a remainder of 19.
Put 4 as the next digit of the answer. 
Result so far: 14.0
Deduct 2584 from 2603 and we're left with 19.
Append the next digit (2) from the dividend to 19 and continue with: 192 / 646

Going ahead to step 5:
If we divide 192 by 646, we get 0 and a remainder of 192.
Use 0 as the next digit of our solution. 
Result so far: 140.0
The remainder is 192 after subtracting 0 from 192.
Include the next digit (9) from the dividend after 192, then repeat: 1929 / 646

Advancing to step 6:
646 goes into 1929 2 times with a remainder of 637.
Use 2 as the next digit of our solution. 
Result so far: 1402.0
If we take 1292 away from 1929, we end up with 637.
Take the next digit (3) from the dividend and append it to 637, then repeat: 6373 / 646

Moving on to step 7:
The number 646 fits into 6373 9 times, leaving a remainder of 559.
Use 9 as the next digit of our solution. 
Result so far: 14029.0
Subtract 5814 from 6373 to get 559.
Bring next digit (7) of the dividend behind the 559 and repeat the process: 5597 / 646

Going ahead to step 8:
5597 divided by 646 is 8 with a remainder of 429.
The next digit of our result is 8. 
Result so far: 140298.0
Subtracting 5168 from 5597 leaves us with 429.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4290, and continue the process.

Moving on to step 9:
646 can be fit into 4290 6 times, resulting in a remainder of 414.
Use 6 as the next digit of our solution. 
Result so far: 140298.6
Subtracting 3876 from 4290 leaves us with 414.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4140, and continue the process.

Advancing to step 10:
646 goes into 4140 6 times with a remainder of 264.
The number 6 becomes the next digit in our result. 
Result so far: 140298.66
The remainder is 264 after subtracting 3876 from 4140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2640, and continue the process.

The final outcome is 140298.66, with a leftover of 0.264.