We're dividing 661080 by 54 
We want to divide 661080 by 54.

Going ahead to step 1:
If we divide 6 by 54, we get 0 and a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 54

Going ahead to step 2:
The number 54 fits into 66 1 times, leaving a remainder of 12.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 54 from 66 and we're left with 12.
Bring next digit (1) of the dividend behind the 12 and repeat the process: 121 / 54

Going ahead to step 3:
The number 54 fits into 121 2 times, leaving a remainder of 13.
The next digit of our result is 2. 
Result so far: 12.0
Subtracting 108 from 121 leaves us with 13.
Bring next digit (0) of the dividend behind the 13 and repeat the process: 130 / 54

On to step 4:
If we divide 130 by 54, we get 2 and a remainder of 22.
Use 2 as the next digit of our solution. 
Result so far: 122.0
The remainder is 22 after subtracting 108 from 130.
Take the next digit (8) from the dividend and append it to 22, then repeat: 228 / 54

Let's proceed to step 5:
54 goes into 228 4 times with a remainder of 12.
Record the quotient 4 as the next digit in the result. 
Result so far: 1224.0
If we subtract 216 from 228, we get 12.
Take the next digit (0) from the dividend and append it to 12, then repeat: 120 / 54

Moving on to step 6:
120 divided by 54 is 2 with a remainder of 12.
The next digit of our result is 2. 
Result so far: 12242.0
If we subtract 108 from 120, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 7:
When dividing 120 by 54, we get 2 with a remainder of 12.
Record the quotient 2 as the next digit in the result. 
Result so far: 12242.2
If we subtract 108 from 120, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 8:
If we divide 120 by 54, we get 2 and a remainder of 12.
Use 2 as the next digit of our solution. 
Result so far: 12242.22
If we take 108 away from 120, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

After the division, we end up with 12242.22 and a remainder of 0.012.