66616408 divided by 684 
We want to figure out the number of times 66616408 can be divided by 684.

Step 1:
When dividing 6 by 684, we get 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 684

Let's proceed to step 2:
The number 684 fits into 66 0 times, leaving a remainder of 66.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 66, we get 66.
Append the next digit (6) from the dividend to 66 and continue with: 666 / 684

Moving on to step 3:
If we divide 666 by 684, we get 0 and a remainder of 666.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 666 to get 666.
Bring next digit (1) of the dividend behind the 666 and repeat the process: 6661 / 684

Going ahead to step 4:
The number 684 fits into 6661 9 times, leaving a remainder of 505.
Write down 9 as next digit of the result. 
Result so far: 9.0
Deduct 6156 from 6661 and we're left with 505.
Grab the next digit (6) from the dividend, add it to 505, then carry on: 5056 / 684

On to step 5:
When dividing 5056 by 684, we get 7 with a remainder of 268.
The next digit of our result is 7. 
Result so far: 97.0
Subtract 4788 from 5056 to get 268.
Grab the next digit (4) from the dividend, add it to 268, then carry on: 2684 / 684

Moving on to step 6:
2684 divided by 684 is 3 with a remainder of 632.
Write down 3 as next digit of the result. 
Result so far: 973.0
If we take 2052 away from 2684, we end up with 632.
Append the next digit (0) from the dividend to 632 and continue with: 6320 / 684

Moving on to step 7:
When dividing 6320 by 684, we get 9 with a remainder of 164.
The next digit of our result is 9. 
Result so far: 9739.0
If we subtract 6156 from 6320, we get 164.
Bring next digit (8) of the dividend behind the 164 and repeat the process: 1648 / 684

Step 8:
The number 684 fits into 1648 2 times, leaving a remainder of 280.
The number 2 becomes the next digit in our result. 
Result so far: 97392.0
If we take 1368 away from 1648, we end up with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Moving on to step 9:
684 goes into 2800 4 times with a remainder of 64.
The number 4 becomes the next digit in our result. 
Result so far: 97392.4
If we take 2736 away from 2800, we end up with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Let's proceed to step 10:
684 can be fit into 640 0 times, resulting in a remainder of 640.
Write down 0 as next digit of the result. 
Result so far: 97392.4
If we subtract 0 from 640, we get 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Step 11:
684 can be fit into 6400 9 times, resulting in a remainder of 244.
Write down 9 as next digit of the result. 
Result so far: 97392.409
If we take 6156 away from 6400, we end up with 244.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2440, and continue the process.

Step 12:
684 can be fit into 2440 3 times, resulting in a remainder of 388.
Use 3 as the next digit of our solution. 
Result so far: 97392.4093
Deduct 2052 from 2440 and we're left with 388.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3880, and continue the process.

Going ahead to step 13:
When dividing 3880 by 684, we get 5 with a remainder of 460.
Put 5 as the next digit of the answer. 
Result so far: 97392.40935
If we subtract 3420 from 3880, we get 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4600, and continue the process.

Going ahead to step 14:
When dividing 4600 by 684, we get 6 with a remainder of 496.
The number 6 becomes the next digit in our result. 
Result so far: 97392.409356
Deduct 4104 from 4600 and we're left with 496.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4960, and continue the process.

Advancing to step 15:
When dividing 4960 by 684, we get 7 with a remainder of 172.
The number 7 becomes the next digit in our result. 
Result so far: 97392.4093567
If we take 4788 away from 4960, we end up with 172.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1720, and continue the process.

Let's proceed to step 16:
When dividing 1720 by 684, we get 2 with a remainder of 352.
Write down 2 as next digit of the result. 
Result so far: 97392.40935672
Subtract 1368 from 1720 to get 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

In conclusion, the division gives 97392.40935672 with a balance of 3.52e-07.