66423657 divided by 99 
We want to divide 66423657 by 99.

Advancing to step 1:
6 divided by 99 is 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 99

Advancing to step 2:
99 can be fit into 66 0 times, resulting in a remainder of 66.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 66 leaves us with 66.
Append the next digit (4) from the dividend to 66 and continue with: 664 / 99

Advancing to step 3:
99 goes into 664 6 times with a remainder of 70.
The next digit of our result is 6. 
Result so far: 6.0
If we take 594 away from 664, we end up with 70.
Bring next digit (2) of the dividend behind the 70 and repeat the process: 702 / 99

Step 4:
99 can be fit into 702 7 times, resulting in a remainder of 9.
The next digit of our result is 7. 
Result so far: 67.0
Subtracting 693 from 702 leaves us with 9.
Fetch the next digit (3) from the dividend, attach it to 9 and continue: 93 / 99

Let's proceed to step 5:
99 goes into 93 0 times with a remainder of 93.
Put 0 as the next digit of the answer. 
Result so far: 670.0
Subtracting 0 from 93 leaves us with 93.
Include the next digit (6) from the dividend after 93, then repeat: 936 / 99

Moving on to step 6:
936 divided by 99 is 9 with a remainder of 45.
Use 9 as the next digit of our solution. 
Result so far: 6709.0
Subtracting 891 from 936 leaves us with 45.
Append the next digit (5) from the dividend to 45 and continue with: 455 / 99

Advancing to step 7:
When dividing 455 by 99, we get 4 with a remainder of 59.
Put 4 as the next digit of the answer. 
Result so far: 67094.0
Subtract 396 from 455 to get 59.
Bring next digit (7) of the dividend behind the 59 and repeat the process: 597 / 99

Let's proceed to step 8:
597 divided by 99 is 6 with a remainder of 3.
The number 6 becomes the next digit in our result. 
Result so far: 670946.0
If we take 594 away from 597, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 9:
99 goes into 30 0 times with a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 670946.0
Subtracting 0 from 30 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 10:
99 can be fit into 300 3 times, resulting in a remainder of 3.
The next digit of our result is 3. 
Result so far: 670946.03
Subtract 297 from 300 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 11:
If we divide 30 by 99, we get 0 and a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 670946.03
If we take 0 away from 30, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 12:
The number 99 fits into 300 3 times, leaving a remainder of 3.
The number 3 becomes the next digit in our result. 
Result so far: 670946.0303
Deduct 297 from 300 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 13:
If we divide 30 by 99, we get 0 and a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 670946.0303
If we take 0 away from 30, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 14:
When dividing 300 by 99, we get 3 with a remainder of 3.
Use 3 as the next digit of our solution. 
Result so far: 670946.030303
The remainder is 3 after subtracting 297 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 15:
When dividing 30 by 99, we get 0 with a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 670946.030303
The remainder is 30 after subtracting 0 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 16:
99 can be fit into 300 3 times, resulting in a remainder of 3.
The next digit of our result is 3. 
Result so far: 670946.03030303
The remainder is 3 after subtracting 297 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

In conclusion, the division gives 670946.03030303 with a balance of 3e-09.