Let's divide 81521930 by 806
We're looking to find how many times 806 goes into 81521930.

Going ahead to step 1:
When dividing 8 by 806, we get 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 806

Going ahead to step 2:
806 can be fit into 81 0 times, resulting in a remainder of 81.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 81 leaves us with 81.
Fetch the next digit (5) from the dividend, attach it to 81 and continue: 815 / 806

Moving on to step 3:
806 can be fit into 815 1 times, resulting in a remainder of 9.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 9 after subtracting 806 from 815.
Fetch the next digit (2) from the dividend, attach it to 9 and continue: 92 / 806

Let's proceed to step 4:
806 can be fit into 92 0 times, resulting in a remainder of 92.
Put 0 as the next digit of the answer. 
Result so far: 10.0
If we subtract 0 from 92, we get 92.
Append the next digit (1) from the dividend to 92 and continue with: 921 / 806

Let's proceed to step 5:
If we divide 921 by 806, we get 1 and a remainder of 115.
The number 1 becomes the next digit in our result. 
Result so far: 101.0
Subtract 806 from 921 to get 115.
Fetch the next digit (9) from the dividend, attach it to 115 and continue: 1159 / 806

Advancing to step 6:
The number 806 fits into 1159 1 times, leaving a remainder of 353.
Record the quotient 1 as the next digit in the result. 
Result so far: 1011.0
Subtracting 806 from 1159 leaves us with 353.
Take the next digit (3) from the dividend and append it to 353, then repeat: 3533 / 806

Let's proceed to step 7:
806 goes into 3533 4 times with a remainder of 309.
Put 4 as the next digit of the answer. 
Result so far: 10114.0
If we subtract 3224 from 3533, we get 309.
Grab the next digit (0) from the dividend, add it to 309, then carry on: 3090 / 806

Moving on to step 8:
806 goes into 3090 3 times with a remainder of 672.
The number 3 becomes the next digit in our result. 
Result so far: 101143.0
If we take 2418 away from 3090, we end up with 672.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6720, and continue the process.

Step 9:
806 goes into 6720 8 times with a remainder of 272.
Record the quotient 8 as the next digit in the result. 
Result so far: 101143.8
If we take 6448 away from 6720, we end up with 272.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2720, and continue the process.

Going ahead to step 10:
806 can be fit into 2720 3 times, resulting in a remainder of 302.
Put 3 as the next digit of the answer. 
Result so far: 101143.83
If we subtract 2418 from 2720, we get 302.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3020, and continue the process.

Advancing to step 11:
3020 divided by 806 is 3 with a remainder of 602.
Put 3 as the next digit of the answer. 
Result so far: 101143.833
Deduct 2418 from 3020 and we're left with 602.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6020, and continue the process.

In conclusion, the division gives 101143.833 with a balance of 0.0602.