We look at the division of 45660590 by 631 
We want to figure out the number of times 45660590 can be divided by 631.

Step 1:
The number 631 fits into 4 0 times, leaving a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Fetch the next digit (5) from the dividend, attach it to 4 and continue: 45 / 631

Let's proceed to step 2:
45 divided by 631 is 0 with a remainder of 45.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 45 after subtracting 0 from 45.
Fetch the next digit (6) from the dividend, attach it to 45 and continue: 456 / 631

On to step 3:
If we divide 456 by 631, we get 0 and a remainder of 456.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 456, we get 456.
Take the next digit (6) from the dividend and append it to 456, then repeat: 4566 / 631

Step 4:
631 can be fit into 4566 7 times, resulting in a remainder of 149.
Write down 7 as next digit of the result. 
Result so far: 7.0
Subtracting 4417 from 4566 leaves us with 149.
Grab the next digit (0) from the dividend, add it to 149, then carry on: 1490 / 631

On to step 5:
When dividing 1490 by 631, we get 2 with a remainder of 228.
Record the quotient 2 as the next digit in the result. 
Result so far: 72.0
If we take 1262 away from 1490, we end up with 228.
Include the next digit (5) from the dividend after 228, then repeat: 2285 / 631

Step 6:
2285 divided by 631 is 3 with a remainder of 392.
Write down 3 as next digit of the result. 
Result so far: 723.0
If we take 1893 away from 2285, we end up with 392.
Bring next digit (9) of the dividend behind the 392 and repeat the process: 3929 / 631

Going ahead to step 7:
When dividing 3929 by 631, we get 6 with a remainder of 143.
Put 6 as the next digit of the answer. 
Result so far: 7236.0
Subtract 3786 from 3929 to get 143.
Bring next digit (0) of the dividend behind the 143 and repeat the process: 1430 / 631

Going ahead to step 8:
631 goes into 1430 2 times with a remainder of 168.
Use 2 as the next digit of our solution. 
Result so far: 72362.0
Subtracting 1262 from 1430 leaves us with 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

Step 9:
If we divide 1680 by 631, we get 2 and a remainder of 418.
Use 2 as the next digit of our solution. 
Result so far: 72362.2
Deduct 1262 from 1680 and we're left with 418.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4180, and continue the process.

Step 10:
631 can be fit into 4180 6 times, resulting in a remainder of 394.
Put 6 as the next digit of the answer. 
Result so far: 72362.26
If we take 3786 away from 4180, we end up with 394.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3940, and continue the process.

Moving on to step 11:
631 can be fit into 3940 6 times, resulting in a remainder of 154.
Record the quotient 6 as the next digit in the result. 
Result so far: 72362.266
If we take 3786 away from 3940, we end up with 154.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1540, and continue the process.

The final outcome is 72362.266, with a leftover of 0.0154.