780485 ÷ 81 
We want to figure out the number of times 780485 can be divided by 81.

Advancing to step 1:
81 goes into 7 0 times with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 81

On to step 2:
81 can be fit into 78 0 times, resulting in a remainder of 78.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 78 leaves us with 78.
Bring next digit (0) of the dividend behind the 78 and repeat the process: 780 / 81

Let's proceed to step 3:
The number 81 fits into 780 9 times, leaving a remainder of 51.
Use 9 as the next digit of our solution. 
Result so far: 9.0
Subtract 729 from 780 to get 51.
Include the next digit (4) from the dividend after 51, then repeat: 514 / 81

Advancing to step 4:
When dividing 514 by 81, we get 6 with a remainder of 28.
Use 6 as the next digit of our solution. 
Result so far: 96.0
The remainder is 28 after subtracting 486 from 514.
Bring next digit (8) of the dividend behind the 28 and repeat the process: 288 / 81

On to step 5:
81 goes into 288 3 times with a remainder of 45.
Use 3 as the next digit of our solution. 
Result so far: 963.0
Deduct 243 from 288 and we're left with 45.
Include the next digit (5) from the dividend after 45, then repeat: 455 / 81

On to step 6:
If we divide 455 by 81, we get 5 and a remainder of 50.
Write down 5 as next digit of the result. 
Result so far: 9635.0
The remainder is 50 after subtracting 405 from 455.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 7:
When dividing 500 by 81, we get 6 with a remainder of 14.
Write down 6 as next digit of the result. 
Result so far: 9635.6
The remainder is 14 after subtracting 486 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 8:
81 goes into 140 1 times with a remainder of 59.
The number 1 becomes the next digit in our result. 
Result so far: 9635.61
The remainder is 59 after subtracting 81 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Let's proceed to step 9:
81 can be fit into 590 7 times, resulting in a remainder of 23.
The next digit of our result is 7. 
Result so far: 9635.617
Subtract 567 from 590 to get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Moving on to step 10:
81 can be fit into 230 2 times, resulting in a remainder of 68.
The number 2 becomes the next digit in our result. 
Result so far: 9635.6172
Subtract 162 from 230 to get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Let's proceed to step 11:
The number 81 fits into 680 8 times, leaving a remainder of 32.
Write down 8 as next digit of the result. 
Result so far: 9635.61728
Deduct 648 from 680 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 12:
81 goes into 320 3 times with a remainder of 77.
Record the quotient 3 as the next digit in the result. 
Result so far: 9635.617283
Subtract 243 from 320 to get 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

Advancing to step 13:
770 divided by 81 is 9 with a remainder of 41.
Use 9 as the next digit of our solution. 
Result so far: 9635.6172839
Deduct 729 from 770 and we're left with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

On to step 14:
When dividing 410 by 81, we get 5 with a remainder of 5.
The next digit of our result is 5. 
Result so far: 9635.61728395
Deduct 405 from 410 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Our division results in 9635.61728395 with a remaining 5e-09.