81459902 ÷ 204 
Let's see how many times 204 fits into 81459902.

Step 1:
204 can be fit into 8 0 times, resulting in a remainder of 8.
The next digit of our result is 0. 
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 / 204

Step 2:
The number 204 fits into 81 0 times, leaving a remainder of 81.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 81, we get 81.
Take the next digit (4) from the dividend and append it to 81, then repeat: 814 / 204

Let's proceed to step 3:
204 goes into 814 3 times with a remainder of 202.
Write down 3 as next digit of the result. 
Result so far: 3.0
Deduct 612 from 814 and we're left with 202.
Bring next digit (5) of the dividend behind the 202 and repeat the process: 2025 / 204

Going ahead to step 4:
If we divide 2025 by 204, we get 9 and a remainder of 189.
Record the quotient 9 as the next digit in the result. 
Result so far: 39.0
The remainder is 189 after subtracting 1836 from 2025.
Fetch the next digit (9) from the dividend, attach it to 189 and continue: 1899 / 204

On to step 5:
204 goes into 1899 9 times with a remainder of 63.
The number 9 becomes the next digit in our result. 
Result so far: 399.0
Deduct 1836 from 1899 and we're left with 63.
Append the next digit (9) from the dividend to 63 and continue with: 639 / 204

Step 6:
If we divide 639 by 204, we get 3 and a remainder of 27.
Write down 3 as next digit of the result. 
Result so far: 3993.0
If we take 612 away from 639, we end up with 27.
Take the next digit (0) from the dividend and append it to 27, then repeat: 270 / 204

Advancing to step 7:
If we divide 270 by 204, we get 1 and a remainder of 66.
Put 1 as the next digit of the answer. 
Result so far: 39931.0
Subtracting 204 from 270 leaves us with 66.
Append the next digit (2) from the dividend to 66 and continue with: 662 / 204

Let's proceed to step 8:
The number 204 fits into 662 3 times, leaving a remainder of 50.
Put 3 as the next digit of the answer. 
Result so far: 399313.0
Subtract 612 from 662 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 9:
The number 204 fits into 500 2 times, leaving a remainder of 92.
Write down 2 as next digit of the result. 
Result so far: 399313.2
The remainder is 92 after subtracting 408 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Going ahead to step 10:
204 can be fit into 920 4 times, resulting in a remainder of 104.
Use 4 as the next digit of our solution. 
Result so far: 399313.24
The remainder is 104 after subtracting 816 from 920.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Advancing to step 11:
204 goes into 1040 5 times with a remainder of 20.
Record the quotient 5 as the next digit in the result. 
Result so far: 399313.245
Subtracting 1020 from 1040 leaves us 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.

Going ahead to step 12:
If we divide 200 by 204, we get 0 and a remainder of 200.
Put 0 as the next digit of the answer. 
Result so far: 399313.245
Subtract 0 from 200 to get 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Advancing to step 13:
204 can be fit into 2000 9 times, resulting in a remainder of 164.
Write down 9 as next digit of the result. 
Result so far: 399313.24509
Subtracting 1836 from 2000 leaves us with 164.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1640, and continue the process.

On to step 14:
204 goes into 1640 8 times with a remainder of 8.
Write down 8 as next digit of the result. 
Result so far: 399313.245098
If we take 1632 away from 1640, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 15:
When dividing 80 by 204, we get 0 with a remainder of 80.
Use 0 as the next digit of our solution. 
Result so far: 399313.245098
The remainder is 80 after subtracting 0 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

On to step 16:
800 divided by 204 is 3 with a remainder of 188.
Put 3 as the next digit of the answer. 
Result so far: 399313.24509803
If we subtract 612 from 800, we get 188.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

In conclusion, the division gives 399313.24509803 with a balance of 1.88e-07.