We're dividing 66780588 by 900 
We're looking to find how many times 900 goes into 66780588.

Moving on to step 1:
When dividing 6 by 900, we get 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 900

Going ahead to step 2:
900 goes into 66 0 times with a remainder of 66.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 66 after subtracting 0 from 66.
Bring next digit (7) of the dividend behind the 66 and repeat the process: 667 / 900

Advancing to step 3:
900 can be fit into 667 0 times, resulting in a remainder of 667.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 667, we end up with 667.
Include the next digit (8) from the dividend after 667, then repeat: 6678 / 900

On to step 4:
900 can be fit into 6678 7 times, resulting in a remainder of 378.
Put 7 as the next digit of the answer. 
Result so far: 7.0
The remainder is 378 after subtracting 6300 from 6678.
Grab the next digit (0) from the dividend, add it to 378, then carry on: 3780 / 900

Let's proceed to step 5:
900 can be fit into 3780 4 times, resulting in a remainder of 180.
Put 4 as the next digit of the answer. 
Result so far: 74.0
Deduct 3600 from 3780 and we're left with 180.
Append the next digit (5) from the dividend to 180 and continue with: 1805 / 900

Going ahead to step 6:
1805 divided by 900 is 2 with a remainder of 5.
Use 2 as the next digit of our solution. 
Result so far: 742.0
The remainder is 5 after subtracting 1800 from 1805.
Bring next digit (8) of the dividend behind the 5 and repeat the process: 58 / 900

On to step 7:
58 divided by 900 is 0 with a remainder of 58.
Use 0 as the next digit of our solution. 
Result so far: 7420.0
If we subtract 0 from 58, we get 58.
Take the next digit (8) from the dividend and append it to 58, then repeat: 588 / 900

Step 8:
If we divide 588 by 900, we get 0 and a remainder of 588.
The next digit of our result is 0. 
Result so far: 74200.0
The remainder is 588 after subtracting 0 from 588.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5880, and continue the process.

Let's proceed to step 9:
When dividing 5880 by 900, we get 6 with a remainder of 480.
Record the quotient 6 as the next digit in the result. 
Result so far: 74200.6
Subtract 5400 from 5880 to get 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Advancing to step 10:
The number 900 fits into 4800 5 times, leaving a remainder of 300.
Record the quotient 5 as the next digit in the result. 
Result so far: 74200.65
If we take 4500 away from 4800, we end up with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Moving on to step 11:
The number 900 fits into 3000 3 times, leaving a remainder of 300.
Write down 3 as next digit of the result. 
Result so far: 74200.653
Subtracting 2700 from 3000 leaves us with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Moving on to step 12:
If we divide 3000 by 900, we get 3 and a remainder of 300.
Put 3 as the next digit of the answer. 
Result so far: 74200.6533
Deduct 2700 from 3000 and we're left with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

The quotient of the division is 74200.6533, and the remainder is 0.003.