800210 ÷ 81 
Let's see how many times 81 fits into 800210.

Let's proceed to step 1:
If we divide 8 by 81, we get 0 and a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Include the next digit (0) from the dividend after 8, then repeat: 80 / 81

On to step 2:
When dividing 80 by 81, we get 0 with a remainder of 80.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 80 to get 80.
Append the next digit (0) from the dividend to 80 and continue with: 800 / 81

Step 3:
If we divide 800 by 81, we get 9 and a remainder of 71.
The next digit of our result is 9. 
Result so far: 9.0
The remainder is 71 after subtracting 729 from 800.
Append the next digit (2) from the dividend to 71 and continue with: 712 / 81

Let's proceed to step 4:
81 goes into 712 8 times with a remainder of 64.
Put 8 as the next digit of the answer. 
Result so far: 98.0
If we subtract 648 from 712, we get 64.
Append the next digit (1) from the dividend to 64 and continue with: 641 / 81

Advancing to step 5:
81 goes into 641 7 times with a remainder of 74.
Record the quotient 7 as the next digit in the result. 
Result so far: 987.0
If we take 567 away from 641, we end up with 74.
Take the next digit (0) from the dividend and append it to 74, then repeat: 740 / 81

Going ahead to step 6:
740 divided by 81 is 9 with a remainder of 11.
Put 9 as the next digit of the answer. 
Result so far: 9879.0
Deduct 729 from 740 and we're left with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Advancing to step 7:
81 goes into 110 1 times with a remainder of 29.
Record the quotient 1 as the next digit in the result. 
Result so far: 9879.1
If we subtract 81 from 110, we get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Step 8:
81 goes into 290 3 times with a remainder of 47.
Put 3 as the next digit of the answer. 
Result so far: 9879.13
Deduct 243 from 290 and we're left with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Advancing to step 9:
When dividing 470 by 81, we get 5 with a remainder of 65.
Record the quotient 5 as the next digit in the result. 
Result so far: 9879.135
Subtracting 405 from 470 leaves us with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

On to step 10:
The number 81 fits into 650 8 times, leaving a remainder of 2.
Put 8 as the next digit of the answer. 
Result so far: 9879.1358
If we subtract 648 from 650, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 11:
81 can be fit into 20 0 times, resulting in a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 9879.1358
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 12:
The number 81 fits into 200 2 times, leaving a remainder of 38.
Put 2 as the next digit of the answer. 
Result so far: 9879.135802
If we subtract 162 from 200, we get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Advancing to step 13:
380 divided by 81 is 4 with a remainder of 56.
The next digit of our result is 4. 
Result so far: 9879.1358024
The remainder is 56 after subtracting 324 from 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Let's proceed to step 14:
81 goes into 560 6 times with a remainder of 74.
Write down 6 as next digit of the result. 
Result so far: 9879.13580246
If we subtract 486 from 560, we get 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Our division results in 9879.13580246 with a remaining 7.4e-08.