We look at the division of 660138 by 4 
We're looking to find how many times 4 goes into 660138.

On to step 1:
4 goes into 6 1 times with a remainder of 2.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 2 after subtracting 4 from 6.
Bring next digit (6) of the dividend behind the 2 and repeat the process: 26 / 4

Going ahead to step 2:
4 goes into 26 6 times with a remainder of 2.
Put 6 as the next digit of the answer. 
Result so far: 16.0
Deduct 24 from 26 and we're left with 2.
Grab the next digit (0) from the dividend, add it to 2, then carry on: 20 / 4

On to step 3:
The number 4 fits into 20 5 times, leaving a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 165.0
If we take 20 away from 20, we end up with 0.
Bring next digit (1) of the dividend behind the 0 and repeat the process: 1 / 4

Let's proceed to step 4:
4 goes into 1 0 times with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 1650.0
If we subtract 0 from 1, we get 1.
Take the next digit (3) from the dividend and append it to 1, then repeat: 13 / 4

Let's proceed to step 5:
13 divided by 4 is 3 with a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 16503.0
Subtract 12 from 13 to get 1.
Bring next digit (8) of the dividend behind the 1 and repeat the process: 18 / 4

Let's proceed to step 6:
4 goes into 18 4 times with a remainder of 2.
The number 4 becomes the next digit in our result. 
Result so far: 165034.0
Subtracting 16 from 18 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 7:
The number 4 fits into 20 5 times, leaving a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 165034.5
If we subtract 20 from 20, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 8:
4 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 165034.5
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 9:
4 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 165034.5
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

In conclusion, the division gives 165034.5 with a balance of 0.0.