66872433 divided by 516 
We want to figure out the number of times 66872433 can be divided by 516.

On to step 1:
When dividing 6 by 516, we get 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 516

On to step 2:
If we divide 66 by 516, we get 0 and a remainder of 66.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 66 after subtracting 0 from 66.
Include the next digit (8) from the dividend after 66, then repeat: 668 / 516

Going ahead to step 3:
516 can be fit into 668 1 times, resulting in a remainder of 152.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 516 away from 668, we end up with 152.
Include the next digit (7) from the dividend after 152, then repeat: 1527 / 516

Advancing to step 4:
1527 divided by 516 is 2 with a remainder of 495.
Write down 2 as next digit of the result. 
Result so far: 12.0
The remainder is 495 after subtracting 1032 from 1527.
Fetch the next digit (2) from the dividend, attach it to 495 and continue: 4952 / 516

Step 5:
The number 516 fits into 4952 9 times, leaving a remainder of 308.
Put 9 as the next digit of the answer. 
Result so far: 129.0
If we subtract 4644 from 4952, we get 308.
Fetch the next digit (4) from the dividend, attach it to 308 and continue: 3084 / 516

Step 6:
When dividing 3084 by 516, we get 5 with a remainder of 504.
The number 5 becomes the next digit in our result. 
Result so far: 1295.0
Deduct 2580 from 3084 and we're left with 504.
Bring next digit (3) of the dividend behind the 504 and repeat the process: 5043 / 516

Advancing to step 7:
5043 divided by 516 is 9 with a remainder of 399.
Write down 9 as next digit of the result. 
Result so far: 12959.0
Deduct 4644 from 5043 and we're left with 399.
Fetch the next digit (3) from the dividend, attach it to 399 and continue: 3993 / 516

Going ahead to step 8:
If we divide 3993 by 516, we get 7 and a remainder of 381.
Write down 7 as next digit of the result. 
Result so far: 129597.0
Subtracting 3612 from 3993 leaves us with 381.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3810, and continue the process.

Going ahead to step 9:
The number 516 fits into 3810 7 times, leaving a remainder of 198.
Write down 7 as next digit of the result. 
Result so far: 129597.7
Subtracting 3612 from 3810 leaves us with 198.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1980, and continue the process.

Moving on to step 10:
1980 divided by 516 is 3 with a remainder of 432.
The next digit of our result is 3. 
Result so far: 129597.73
Subtracting 1548 from 1980 leaves us with 432.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4320, and continue the process.

Let's proceed to step 11:
4320 divided by 516 is 8 with a remainder of 192.
Use 8 as the next digit of our solution. 
Result so far: 129597.738
If we take 4128 away from 4320, we end up with 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

Moving on to step 12:
When dividing 1920 by 516, we get 3 with a remainder of 372.
Record the quotient 3 as the next digit in the result. 
Result so far: 129597.7383
If we subtract 1548 from 1920, we get 372.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3720, and continue the process.

On to step 13:
516 goes into 3720 7 times with a remainder of 108.
Use 7 as the next digit of our solution. 
Result so far: 129597.73837
Subtracting 3612 from 3720 leaves us with 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

Let's proceed to step 14:
516 goes into 1080 2 times with a remainder of 48.
Write down 2 as next digit of the result. 
Result so far: 129597.738372
The remainder is 48 after subtracting 1032 from 1080.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Moving on to step 15:
516 goes into 480 0 times with a remainder of 480.
Write down 0 as next digit of the result. 
Result so far: 129597.738372
Subtracting 0 from 480 leaves us with 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

On to step 16:
516 goes into 4800 9 times with a remainder of 156.
Write down 9 as next digit of the result. 
Result so far: 129597.73837209
If we subtract 4644 from 4800, we get 156.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1560, and continue the process.

The final outcome is 129597.73837209, with a leftover of 1.56e-07.