We look at the division of 683390 by 66 
We want to figure out the number of times 683390 can be divided by 66.

Step 1:
66 goes into 6 0 times with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Bring next digit (8) of the dividend behind the 6 and repeat the process: 68 / 66

Step 2:
66 goes into 68 1 times with a remainder of 2.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 66 from 68 and we're left with 2.
Take the next digit (3) from the dividend and append it to 2, then repeat: 23 / 66

On to step 3:
23 divided by 66 is 0 with a remainder of 23.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
If we take 0 away from 23, we end up with 23.
Bring next digit (3) of the dividend behind the 23 and repeat the process: 233 / 66

On to step 4:
If we divide 233 by 66, we get 3 and a remainder of 35.
Write down 3 as next digit of the result. 
Result so far: 103.0
The remainder is 35 after subtracting 198 from 233.
Include the next digit (9) from the dividend after 35, then repeat: 359 / 66

Step 5:
359 divided by 66 is 5 with a remainder of 29.
The number 5 becomes the next digit in our result. 
Result so far: 1035.0
Subtract 330 from 359 to get 29.
Append the next digit (0) from the dividend to 29 and continue with: 290 / 66

Moving on to step 6:
When dividing 290 by 66, we get 4 with a remainder of 26.
Use 4 as the next digit of our solution. 
Result so far: 10354.0
Subtracting 264 from 290 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.

Step 7:
260 divided by 66 is 3 with a remainder of 62.
Put 3 as the next digit of the answer. 
Result so far: 10354.3
Subtracting 198 from 260 leaves us 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.

Step 8:
66 can be fit into 620 9 times, resulting in a remainder of 26.
Write down 9 as next digit of the result. 
Result so far: 10354.39
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.

Moving on to step 9:
260 divided by 66 is 3 with a remainder of 62.
Record the quotient 3 as the next digit in the result. 
Result so far: 10354.393
The remainder is 62 after subtracting 198 from 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Let's proceed to step 10:
When dividing 620 by 66, we get 9 with a remainder of 26.
The next digit of our result is 9. 
Result so far: 10354.3939
If we subtract 594 from 620, we 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.

Let's proceed to step 11:
260 divided by 66 is 3 with a remainder of 62.
Write down 3 as next digit of the result. 
Result so far: 10354.39393
Subtracting 198 from 260 leaves us 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.

Step 12:
620 divided by 66 is 9 with a remainder of 26.
The next digit of our result is 9. 
Result so far: 10354.393939
If we subtract 594 from 620, we 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.

On to step 13:
The number 66 fits into 260 3 times, leaving a remainder of 62.
The next digit of our result is 3. 
Result so far: 10354.3939393
Subtract 198 from 260 to 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.

Advancing to step 14:
66 can be fit into 620 9 times, resulting in a remainder of 26.
Record the quotient 9 as the next digit in the result. 
Result so far: 10354.39393939
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.

Our division results in 10354.39393939 with a remaining 2.6e-08.