Let's divide 646925 by 66
We want to figure out the number of times 646925 can be divided by 66.

On to step 1:
66 can be fit into 6 0 times, resulting in a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Append the next digit (4) from the dividend to 6 and continue with: 64 / 66

Moving on to step 2:
If we divide 64 by 66, we get 0 and a remainder of 64.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 64, we end up with 64.
Fetch the next digit (6) from the dividend, attach it to 64 and continue: 646 / 66

Advancing to step 3:
When dividing 646 by 66, we get 9 with a remainder of 52.
Use 9 as the next digit of our solution. 
Result so far: 9.0
The remainder is 52 after subtracting 594 from 646.
Grab the next digit (9) from the dividend, add it to 52, then carry on: 529 / 66

Advancing to step 4:
If we divide 529 by 66, we get 8 and a remainder of 1.
Record the quotient 8 as the next digit in the result. 
Result so far: 98.0
Subtract 528 from 529 to get 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 66

Step 5:
12 divided by 66 is 0 with a remainder of 12.
The number 0 becomes the next digit in our result. 
Result so far: 980.0
The remainder is 12 after subtracting 0 from 12.
Include the next digit (5) from the dividend after 12, then repeat: 125 / 66

Let's proceed to step 6:
If we divide 125 by 66, we get 1 and a remainder of 59.
Record the quotient 1 as the next digit in the result. 
Result so far: 9801.0
If we take 66 away from 125, we end up with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Moving on to step 7:
66 can be fit into 590 8 times, resulting in a remainder of 62.
Write down 8 as next digit of the result. 
Result so far: 9801.8
If we take 528 away from 590, we end up with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Moving on to step 8:
66 goes into 620 9 times with a remainder of 26.
Write down 9 as next digit of the result. 
Result so far: 9801.89
Subtracting 594 from 620 leaves us with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Advancing to step 9:
If we divide 260 by 66, we get 3 and a remainder of 62.
The next digit of our result is 3. 
Result so far: 9801.893
If we subtract 198 from 260, we get 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

On to step 10:
620 divided by 66 is 9 with a remainder of 26.
Record the quotient 9 as the next digit in the result. 
Result so far: 9801.8939
Subtract 594 from 620 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Step 11:
66 can be fit into 260 3 times, resulting in a remainder of 62.
The next digit of our result is 3. 
Result so far: 9801.89393
If we take 198 away from 260, we end up with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Moving on to step 12:
When dividing 620 by 66, we get 9 with a remainder of 26.
Write down 9 as next digit of the result. 
Result so far: 9801.893939
If we take 594 away from 620, we end up with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Let's proceed to step 13:
When dividing 260 by 66, we get 3 with a remainder of 62.
The number 3 becomes the next digit in our result. 
Result so far: 9801.8939393
Deduct 198 from 260 and we're left with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

On to step 14:
If we divide 620 by 66, we get 9 and a remainder of 26.
Use 9 as the next digit of our solution. 
Result so far: 9801.89393939
Subtracting 594 from 620 leaves us with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

In conclusion, the division gives 9801.89393939 with a balance of 2.6e-08.