66876064 divided by 18 
Let's see how many times 18 fits into 66876064.

Moving on to step 1:
6 divided by 18 is 0 with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 18

Moving on to step 2:
18 can be fit into 66 3 times, resulting in a remainder of 12.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we take 54 away from 66, we end up with 12.
Bring next digit (8) of the dividend behind the 12 and repeat the process: 128 / 18

Advancing to step 3:
18 goes into 128 7 times with a remainder of 2.
The next digit of our result is 7. 
Result so far: 37.0
Subtract 126 from 128 to get 2.
Fetch the next digit (7) from the dividend, attach it to 2 and continue: 27 / 18

Advancing to step 4:
When dividing 27 by 18, we get 1 with a remainder of 9.
Write down 1 as next digit of the result. 
Result so far: 371.0
Subtracting 18 from 27 leaves us with 9.
Bring next digit (6) of the dividend behind the 9 and repeat the process: 96 / 18

Step 5:
The number 18 fits into 96 5 times, leaving a remainder of 6.
The number 5 becomes the next digit in our result. 
Result so far: 3715.0
If we take 90 away from 96, we end up with 6.
Append the next digit (0) from the dividend to 6 and continue with: 60 / 18

Let's proceed to step 6:
If we divide 60 by 18, we get 3 and a remainder of 6.
Write down 3 as next digit of the result. 
Result so far: 37153.0
Deduct 54 from 60 and we're left with 6.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 18

Advancing to step 7:
18 can be fit into 66 3 times, resulting in a remainder of 12.
Put 3 as the next digit of the answer. 
Result so far: 371533.0
If we subtract 54 from 66, we get 12.
Append the next digit (4) from the dividend to 12 and continue with: 124 / 18

Going ahead to step 8:
18 goes into 124 6 times with a remainder of 16.
Put 6 as the next digit of the answer. 
Result so far: 3715336.0
Subtract 108 from 124 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 9:
The number 18 fits into 160 8 times, leaving a remainder of 16.
The next digit of our result is 8. 
Result so far: 3715336.8
If we take 144 away from 160, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 10:
The number 18 fits into 160 8 times, leaving a remainder of 16.
The number 8 becomes the next digit in our result. 
Result so far: 3715336.88
If we subtract 144 from 160, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

After the division, we end up with 3715336.88 and a remainder of 0.016.