We look at the division of 8217991 by 434 
We want to divide 8217991 by 434.

Let's proceed to step 1:
When dividing 8 by 434, we get 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Append the next digit (2) from the dividend to 8 and continue with: 82 / 434

Moving on to step 2:
The number 434 fits into 82 0 times, leaving a remainder of 82.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 82 to get 82.
Bring next digit (1) of the dividend behind the 82 and repeat the process: 821 / 434

On to step 3:
If we divide 821 by 434, we get 1 and a remainder of 387.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 434 from 821 leaves us with 387.
Take the next digit (7) from the dividend and append it to 387, then repeat: 3877 / 434

Let's proceed to step 4:
If we divide 3877 by 434, we get 8 and a remainder of 405.
The number 8 becomes the next digit in our result. 
Result so far: 18.0
Subtract 3472 from 3877 to get 405.
Take the next digit (9) from the dividend and append it to 405, then repeat: 4059 / 434

Let's proceed to step 5:
If we divide 4059 by 434, we get 9 and a remainder of 153.
Put 9 as the next digit of the answer. 
Result so far: 189.0
Deduct 3906 from 4059 and we're left with 153.
Bring next digit (9) of the dividend behind the 153 and repeat the process: 1539 / 434

Going ahead to step 6:
1539 divided by 434 is 3 with a remainder of 237.
Put 3 as the next digit of the answer. 
Result so far: 1893.0
If we take 1302 away from 1539, we end up with 237.
Bring next digit (1) of the dividend behind the 237 and repeat the process: 2371 / 434

On to step 7:
434 goes into 2371 5 times with a remainder of 201.
Put 5 as the next digit of the answer. 
Result so far: 18935.0
Deduct 2170 from 2371 and we're left with 201.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2010, and continue the process.

Advancing to step 8:
434 can be fit into 2010 4 times, resulting in a remainder of 274.
The number 4 becomes the next digit in our result. 
Result so far: 18935.4
Subtract 1736 from 2010 to get 274.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2740, and continue the process.

Advancing to step 9:
When dividing 2740 by 434, we get 6 with a remainder of 136.
The number 6 becomes the next digit in our result. 
Result so far: 18935.46
If we take 2604 away from 2740, we end up with 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

Going ahead to step 10:
434 can be fit into 1360 3 times, resulting in a remainder of 58.
Write down 3 as next digit of the result. 
Result so far: 18935.463
Deduct 1302 from 1360 and we're left with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

On to step 11:
If we divide 580 by 434, we get 1 and a remainder of 146.
The next digit of our result is 1. 
Result so far: 18935.4631
Deduct 434 from 580 and we're left with 146.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1460, and continue the process.

Let's proceed to step 12:
434 goes into 1460 3 times with a remainder of 158.
Put 3 as the next digit of the answer. 
Result so far: 18935.46313
Subtract 1302 from 1460 to get 158.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1580, and continue the process.

On to step 13:
If we divide 1580 by 434, we get 3 and a remainder of 278.
The next digit of our result is 3. 
Result so far: 18935.463133
If we subtract 1302 from 1580, we get 278.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2780, and continue the process.

The final outcome is 18935.463133, with a leftover of 2.78e-05.