66895395 ÷ 520 
We want to figure out the number of times 66895395 can be divided by 520.

Advancing to step 1:
When dividing 6 by 520, we get 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
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 / 520

Let's proceed to step 2:
When dividing 66 by 520, we get 0 with a remainder of 66.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 66 and we're left with 66.
Bring next digit (8) of the dividend behind the 66 and repeat the process: 668 / 520

Step 3:
520 can be fit into 668 1 times, resulting in a remainder of 148.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 520 from 668 to get 148.
Fetch the next digit (9) from the dividend, attach it to 148 and continue: 1489 / 520

Going ahead to step 4:
520 goes into 1489 2 times with a remainder of 449.
The next digit of our result is 2. 
Result so far: 12.0
If we take 1040 away from 1489, we end up with 449.
Grab the next digit (5) from the dividend, add it to 449, then carry on: 4495 / 520

Going ahead to step 5:
The number 520 fits into 4495 8 times, leaving a remainder of 335.
The number 8 becomes the next digit in our result. 
Result so far: 128.0
Deduct 4160 from 4495 and we're left with 335.
Include the next digit (3) from the dividend after 335, then repeat: 3353 / 520

On to step 6:
520 goes into 3353 6 times with a remainder of 233.
Use 6 as the next digit of our solution. 
Result so far: 1286.0
The remainder is 233 after subtracting 3120 from 3353.
Include the next digit (9) from the dividend after 233, then repeat: 2339 / 520

On to step 7:
When dividing 2339 by 520, we get 4 with a remainder of 259.
Use 4 as the next digit of our solution. 
Result so far: 12864.0
Deduct 2080 from 2339 and we're left with 259.
Grab the next digit (5) from the dividend, add it to 259, then carry on: 2595 / 520

Going ahead to step 8:
If we divide 2595 by 520, we get 4 and a remainder of 515.
Put 4 as the next digit of the answer. 
Result so far: 128644.0
If we subtract 2080 from 2595, we get 515.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5150, and continue the process.

Step 9:
520 goes into 5150 9 times with a remainder of 470.
The number 9 becomes the next digit in our result. 
Result so far: 128644.9
If we subtract 4680 from 5150, we get 470.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4700, and continue the process.

On to step 10:
4700 divided by 520 is 9 with a remainder of 20.
The number 9 becomes the next digit in our result. 
Result so far: 128644.99
The remainder is 20 after subtracting 4680 from 4700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The final result is 128644.99 with a remainder of 0.02.