66708090 ÷ 153 
We want to figure out the number of times 66708090 can be divided by 153.

Let's proceed to step 1:
The number 153 fits into 6 0 times, leaving a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 153

Step 2:
The number 153 fits into 66 0 times, leaving a remainder of 66.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 66 leaves us with 66.
Fetch the next digit (7) from the dividend, attach it to 66 and continue: 667 / 153

On to step 3:
If we divide 667 by 153, we get 4 and a remainder of 55.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Subtracting 612 from 667 leaves us with 55.
Grab the next digit (0) from the dividend, add it to 55, then carry on: 550 / 153

Step 4:
153 goes into 550 3 times with a remainder of 91.
The number 3 becomes the next digit in our result. 
Result so far: 43.0
If we subtract 459 from 550, we get 91.
Bring next digit (8) of the dividend behind the 91 and repeat the process: 918 / 153

Let's proceed to step 5:
When dividing 918 by 153, we get 6 with a remainder of 0.
The number 6 becomes the next digit in our result. 
Result so far: 436.0
If we take 918 away from 918, we end up with 0.
Take the next digit (0) from the dividend and append it to 0, then repeat: 0 / 153

Moving on to step 6:
The number 153 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 4360.0
Deduct 0 from 0 and we're left with 0.
Include the next digit (9) from the dividend after 0, then repeat: 9 / 153

Advancing to step 7:
153 goes into 9 0 times with a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 43600.0
The remainder is 9 after subtracting 0 from 9.
Grab the next digit (0) from the dividend, add it to 9, then carry on: 90 / 153

Let's proceed to step 8:
90 divided by 153 is 0 with a remainder of 90.
Put 0 as the next digit of the answer. 
Result so far: 436000.0
The remainder is 90 after subtracting 0 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Going ahead to step 9:
153 goes into 900 5 times with a remainder of 135.
The next digit of our result is 5. 
Result so far: 436000.5
If we subtract 765 from 900, we get 135.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1350, and continue the process.

On to step 10:
1350 divided by 153 is 8 with a remainder of 126.
Use 8 as the next digit of our solution. 
Result so far: 436000.58
Subtracting 1224 from 1350 leaves us with 126.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

Step 11:
1260 divided by 153 is 8 with a remainder of 36.
The number 8 becomes the next digit in our result. 
Result so far: 436000.588
The remainder is 36 after subtracting 1224 from 1260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

The final result is 436000.588 with a remainder of 0.0036.