766630 ÷ 81 
Let's see how many times 81 fits into 766630.

Advancing to step 1:
The number 81 fits into 7 0 times, leaving a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Append the next digit (6) from the dividend to 7 and continue with: 76 / 81

On to step 2:
81 can be fit into 76 0 times, resulting in a remainder of 76.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 76 after subtracting 0 from 76.
Bring next digit (6) of the dividend behind the 76 and repeat the process: 766 / 81

Let's proceed to step 3:
766 divided by 81 is 9 with a remainder of 37.
Put 9 as the next digit of the answer. 
Result so far: 9.0
If we take 729 away from 766, we end up with 37.
Include the next digit (6) from the dividend after 37, then repeat: 376 / 81

Step 4:
376 divided by 81 is 4 with a remainder of 52.
Record the quotient 4 as the next digit in the result. 
Result so far: 94.0
Subtracting 324 from 376 leaves us with 52.
Append the next digit (3) from the dividend to 52 and continue with: 523 / 81

Going ahead to step 5:
81 goes into 523 6 times with a remainder of 37.
Write down 6 as next digit of the result. 
Result so far: 946.0
If we subtract 486 from 523, we get 37.
Fetch the next digit (0) from the dividend, attach it to 37 and continue: 370 / 81

On to step 6:
370 divided by 81 is 4 with a remainder of 46.
Record the quotient 4 as the next digit in the result. 
Result so far: 9464.0
Deduct 324 from 370 and we're left with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Going ahead to step 7:
460 divided by 81 is 5 with a remainder of 55.
Record the quotient 5 as the next digit in the result. 
Result so far: 9464.5
If we take 405 away from 460, we end up with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Let's proceed to step 8:
81 goes into 550 6 times with a remainder of 64.
Put 6 as the next digit of the answer. 
Result so far: 9464.56
Subtract 486 from 550 to get 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 9:
The number 81 fits into 640 7 times, leaving a remainder of 73.
Write down 7 as next digit of the result. 
Result so far: 9464.567
Deduct 567 from 640 and we're left with 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

On to step 10:
81 goes into 730 9 times with a remainder of 1.
Record the quotient 9 as the next digit in the result. 
Result so far: 9464.5679
If we subtract 729 from 730, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 11:
When dividing 10 by 81, we get 0 with a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 9464.5679
Subtracting 0 from 10 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 12:
The number 81 fits into 100 1 times, leaving a remainder of 19.
Use 1 as the next digit of our solution. 
Result so far: 9464.567901
Subtracting 81 from 100 leaves us with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Let's proceed to step 13:
The number 81 fits into 190 2 times, leaving a remainder of 28.
The number 2 becomes the next digit in our result. 
Result so far: 9464.5679012
Deduct 162 from 190 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 14:
81 goes into 280 3 times with a remainder of 37.
Use 3 as the next digit of our solution. 
Result so far: 9464.56790123
Deduct 243 from 280 and we're left with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

After the division, we end up with 9464.56790123 and a remainder of 3.7e-08.