Let's divide 3631588 by 660
We're looking to find how many times 660 goes into 3631588.

Step 1:
When dividing 3 by 660, we get 0 with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Fetch the next digit (6) from the dividend, attach it to 3 and continue: 36 / 660

Let's proceed to step 2:
The number 660 fits into 36 0 times, leaving a remainder of 36.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 36, we end up with 36.
Fetch the next digit (3) from the dividend, attach it to 36 and continue: 363 / 660

Step 3:
If we divide 363 by 660, we get 0 and a remainder of 363.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 363, we get 363.
Take the next digit (1) from the dividend and append it to 363, then repeat: 3631 / 660

Going ahead to step 4:
The number 660 fits into 3631 5 times, leaving a remainder of 331.
The next digit of our result is 5. 
Result so far: 5.0
Subtracting 3300 from 3631 leaves us with 331.
Fetch the next digit (5) from the dividend, attach it to 331 and continue: 3315 / 660

Let's proceed to step 5:
If we divide 3315 by 660, we get 5 and a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 55.0
Subtracting 3300 from 3315 leaves us with 15.
Grab the next digit (8) from the dividend, add it to 15, then carry on: 158 / 660

On to step 6:
If we divide 158 by 660, we get 0 and a remainder of 158.
The number 0 becomes the next digit in our result. 
Result so far: 550.0
If we subtract 0 from 158, we get 158.
Bring next digit (8) of the dividend behind the 158 and repeat the process: 1588 / 660

Let's proceed to step 7:
1588 divided by 660 is 2 with a remainder of 268.
Record the quotient 2 as the next digit in the result. 
Result so far: 5502.0
Subtracting 1320 from 1588 leaves us with 268.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2680, and continue the process.

Let's proceed to step 8:
2680 divided by 660 is 4 with a remainder of 40.
Record the quotient 4 as the next digit in the result. 
Result so far: 5502.4
If we take 2640 away from 2680, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 9:
400 divided by 660 is 0 with a remainder of 400.
Put 0 as the next digit of the answer. 
Result so far: 5502.4
If we subtract 0 from 400, we get 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Going ahead to step 10:
The number 660 fits into 4000 6 times, leaving a remainder of 40.
Record the quotient 6 as the next digit in the result. 
Result so far: 5502.406
If we take 3960 away from 4000, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 11:
400 divided by 660 is 0 with a remainder of 400.
Use 0 as the next digit of our solution. 
Result so far: 5502.406
The remainder is 400 after subtracting 0 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Step 12:
If we divide 4000 by 660, we get 6 and a remainder of 40.
The next digit of our result is 6. 
Result so far: 5502.40606
Deduct 3960 from 4000 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 13:
400 divided by 660 is 0 with a remainder of 400.
Put 0 as the next digit of the answer. 
Result so far: 5502.40606
Deduct 0 from 400 and we're left with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Step 14:
660 goes into 4000 6 times with a remainder of 40.
Record the quotient 6 as the next digit in the result. 
Result so far: 5502.4060606
If we take 3960 away from 4000, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 15:
660 goes into 400 0 times with a remainder of 400.
Put 0 as the next digit of the answer. 
Result so far: 5502.4060606
If we take 0 away from 400, we end up with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

The final result is 5502.4060606 with a remainder of 4e-07.