66609600 divided by 530 
We want to figure out the number of times 66609600 can be divided by 530.

Step 1:
If we divide 6 by 530, we get 0 and a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 530

Let's proceed to step 2:
530 goes into 66 0 times with a remainder of 66.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 66 to get 66.
Bring next digit (6) of the dividend behind the 66 and repeat the process: 666 / 530

Advancing to step 3:
When dividing 666 by 530, we get 1 with a remainder of 136.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 530 away from 666, we end up with 136.
Append the next digit (0) from the dividend to 136 and continue with: 1360 / 530

Step 4:
1360 divided by 530 is 2 with a remainder of 300.
Write down 2 as next digit of the result. 
Result so far: 12.0
If we take 1060 away from 1360, we end up with 300.
Include the next digit (9) from the dividend after 300, then repeat: 3009 / 530

Let's proceed to step 5:
The number 530 fits into 3009 5 times, leaving a remainder of 359.
The next digit of our result is 5. 
Result so far: 125.0
Deduct 2650 from 3009 and we're left with 359.
Take the next digit (6) from the dividend and append it to 359, then repeat: 3596 / 530

Step 6:
When dividing 3596 by 530, we get 6 with a remainder of 416.
The number 6 becomes the next digit in our result. 
Result so far: 1256.0
Subtracting 3180 from 3596 leaves us with 416.
Take the next digit (0) from the dividend and append it to 416, then repeat: 4160 / 530

Moving on to step 7:
4160 divided by 530 is 7 with a remainder of 450.
The number 7 becomes the next digit in our result. 
Result so far: 12567.0
The remainder is 450 after subtracting 3710 from 4160.
Append the next digit (0) from the dividend to 450 and continue with: 4500 / 530

Going ahead to step 8:
If we divide 4500 by 530, we get 8 and a remainder of 260.
The next digit of our result is 8. 
Result so far: 125678.0
If we subtract 4240 from 4500, we get 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

On to step 9:
530 can be fit into 2600 4 times, resulting in a remainder of 480.
The number 4 becomes the next digit in our result. 
Result so far: 125678.4
If we subtract 2120 from 2600, we 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.

Moving on to step 10:
4800 divided by 530 is 9 with a remainder of 30.
Put 9 as the next digit of the answer. 
Result so far: 125678.49
If we subtract 4770 from 4800, we get 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 11:
530 goes into 300 0 times with a remainder of 300.
The number 0 becomes the next digit in our result. 
Result so far: 125678.49
If we subtract 0 from 300, we get 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Going ahead to step 12:
When dividing 3000 by 530, we get 5 with a remainder of 350.
Use 5 as the next digit of our solution. 
Result so far: 125678.4905
Deduct 2650 from 3000 and we're left with 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

Let's proceed to step 13:
3500 divided by 530 is 6 with a remainder of 320.
The number 6 becomes the next digit in our result. 
Result so far: 125678.49056
Deduct 3180 from 3500 and we're left with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Going ahead to step 14:
530 goes into 3200 6 times with a remainder of 20.
Use 6 as the next digit of our solution. 
Result so far: 125678.490566
Subtracting 3180 from 3200 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

After the division, we end up with 125678.490566 and a remainder of 2e-06.