We look at the division of 661240 by 18 
We want to figure out the number of times 661240 can be divided by 18.

Let's proceed to step 1:
18 can be fit into 6 0 times, resulting in a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 18

Going ahead to step 2:
The number 18 fits into 66 3 times, leaving a remainder of 12.
Write down 3 as next digit of the result. 
Result so far: 3.0
Deduct 54 from 66 and we're left with 12.
Fetch the next digit (1) from the dividend, attach it to 12 and continue: 121 / 18

Moving on to step 3:
18 goes into 121 6 times with a remainder of 13.
Write down 6 as next digit of the result. 
Result so far: 36.0
Deduct 108 from 121 and we're left with 13.
Grab the next digit (2) from the dividend, add it to 13, then carry on: 132 / 18

Moving on to step 4:
The number 18 fits into 132 7 times, leaving a remainder of 6.
Use 7 as the next digit of our solution. 
Result so far: 367.0
Subtracting 126 from 132 leaves us with 6.
Include the next digit (4) from the dividend after 6, then repeat: 64 / 18

Let's proceed to step 5:
18 goes into 64 3 times with a remainder of 10.
Use 3 as the next digit of our solution. 
Result so far: 3673.0
If we take 54 away from 64, we end up with 10.
Fetch the next digit (0) from the dividend, attach it to 10 and continue: 100 / 18

Advancing to step 6:
18 can be fit into 100 5 times, resulting in a remainder of 10.
Record the quotient 5 as the next digit in the result. 
Result so far: 36735.0
If we take 90 away from 100, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 7:
18 can be fit into 100 5 times, resulting in a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 36735.5
If we take 90 away from 100, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 8:
100 divided by 18 is 5 with a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 36735.55
If we take 90 away from 100, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Our division results in 36735.55 with a remaining 0.01.