We look at the division of 81211102 by 830 
We're looking to find how many times 830 goes into 81211102.

Moving on to step 1:
830 can be fit into 8 0 times, resulting in a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 830

Going ahead to step 2:
830 goes into 81 0 times with a remainder of 81.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 81, we get 81.
Append the next digit (2) from the dividend to 81 and continue with: 812 / 830

On to step 3:
812 divided by 830 is 0 with a remainder of 812.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 812, we end up with 812.
Take the next digit (1) from the dividend and append it to 812, then repeat: 8121 / 830

Advancing to step 4:
8121 divided by 830 is 9 with a remainder of 651.
Put 9 as the next digit of the answer. 
Result so far: 9.0
Deduct 7470 from 8121 and we're left with 651.
Fetch the next digit (1) from the dividend, attach it to 651 and continue: 6511 / 830

On to step 5:
The number 830 fits into 6511 7 times, leaving a remainder of 701.
The number 7 becomes the next digit in our result. 
Result so far: 97.0
Subtracting 5810 from 6511 leaves us with 701.
Fetch the next digit (1) from the dividend, attach it to 701 and continue: 7011 / 830

Going ahead to step 6:
830 can be fit into 7011 8 times, resulting in a remainder of 371.
The number 8 becomes the next digit in our result. 
Result so far: 978.0
Subtracting 6640 from 7011 leaves us with 371.
Include the next digit (0) from the dividend after 371, then repeat: 3710 / 830

On to step 7:
The number 830 fits into 3710 4 times, leaving a remainder of 390.
The number 4 becomes the next digit in our result. 
Result so far: 9784.0
If we subtract 3320 from 3710, we get 390.
Fetch the next digit (2) from the dividend, attach it to 390 and continue: 3902 / 830

On to step 8:
If we divide 3902 by 830, we get 4 and a remainder of 582.
The number 4 becomes the next digit in our result. 
Result so far: 97844.0
The remainder is 582 after subtracting 3320 from 3902.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5820, and continue the process.

Going ahead to step 9:
If we divide 5820 by 830, we get 7 and a remainder of 10.
Record the quotient 7 as the next digit in the result. 
Result so far: 97844.7
Deduct 5810 from 5820 and we're left 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.

Moving on to step 10:
The number 830 fits into 100 0 times, leaving a remainder of 100.
Put 0 as the next digit of the answer. 
Result so far: 97844.7
Subtracting 0 from 100 leaves us with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Going ahead to step 11:
830 goes into 1000 1 times with a remainder of 170.
Record the quotient 1 as the next digit in the result. 
Result so far: 97844.701
Subtracting 830 from 1000 leaves us with 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Moving on to step 12:
If we divide 1700 by 830, we get 2 and a remainder of 40.
The number 2 becomes the next digit in our result. 
Result so far: 97844.7012
If we take 1660 away from 1700, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 13:
400 divided by 830 is 0 with a remainder of 400.
Record the quotient 0 as the next digit in the result. 
Result so far: 97844.7012
Subtracting 0 from 400 leaves us with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Moving on to step 14:
When dividing 4000 by 830, we get 4 with a remainder of 680.
Use 4 as the next digit of our solution. 
Result so far: 97844.701204
The remainder is 680 after subtracting 3320 from 4000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6800, and continue the process.

Let's proceed to step 15:
If we divide 6800 by 830, we get 8 and a remainder of 160.
The next digit of our result is 8. 
Result so far: 97844.7012048
Deduct 6640 from 6800 and we're left with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Going ahead to step 16:
When dividing 1600 by 830, we get 1 with a remainder of 770.
Put 1 as the next digit of the answer. 
Result so far: 97844.70120481
If we take 830 away from 1600, we end up with 770.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7700, and continue the process.

In conclusion, the division gives 97844.70120481 with a balance of 7.7e-07.