640991 divided by 34 
Let's see how many times 34 fits into 640991.

Step 1:
When dividing 6 by 34, we get 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Include the next digit (4) from the dividend after 6, then repeat: 64 / 34

Going ahead to step 2:
The number 34 fits into 64 1 times, leaving a remainder of 30.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 30 after subtracting 34 from 64.
Bring next digit (0) of the dividend behind the 30 and repeat the process: 300 / 34

Advancing to step 3:
34 goes into 300 8 times with a remainder of 28.
The number 8 becomes the next digit in our result. 
Result so far: 18.0
Subtracting 272 from 300 leaves us with 28.
Bring next digit (9) of the dividend behind the 28 and repeat the process: 289 / 34

Advancing to step 4:
289 divided by 34 is 8 with a remainder of 17.
The next digit of our result is 8. 
Result so far: 188.0
The remainder is 17 after subtracting 272 from 289.
Append the next digit (9) from the dividend to 17 and continue with: 179 / 34

Step 5:
34 goes into 179 5 times with a remainder of 9.
Use 5 as the next digit of our solution. 
Result so far: 1885.0
Subtracting 170 from 179 leaves us with 9.
Append the next digit (1) from the dividend to 9 and continue with: 91 / 34

Let's proceed to step 6:
When dividing 91 by 34, we get 2 with a remainder of 23.
The next digit of our result is 2. 
Result so far: 18852.0
Subtract 68 from 91 to get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Advancing to step 7:
34 can be fit into 230 6 times, resulting in a remainder of 26.
Use 6 as the next digit of our solution. 
Result so far: 18852.6
If we take 204 away from 230, we end up with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Step 8:
If we divide 260 by 34, we get 7 and a remainder of 22.
The next digit of our result is 7. 
Result so far: 18852.67
Deduct 238 from 260 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Step 9:
If we divide 220 by 34, we get 6 and a remainder of 16.
Use 6 as the next digit of our solution. 
Result so far: 18852.676
Subtract 204 from 220 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 10:
When dividing 160 by 34, we get 4 with a remainder of 24.
Put 4 as the next digit of the answer. 
Result so far: 18852.6764
Subtract 136 from 160 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 11:
When dividing 240 by 34, we get 7 with a remainder of 2.
The next digit of our result is 7. 
Result so far: 18852.67647
Subtract 238 from 240 to 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.

Going ahead to step 12:
20 divided by 34 is 0 with a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 18852.67647
If we subtract 0 from 20, we get 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 13:
34 can be fit into 200 5 times, resulting in a remainder of 30.
The number 5 becomes the next digit in our result. 
Result so far: 18852.6764705
Subtract 170 from 200 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 14:
If we divide 300 by 34, we get 8 and a remainder of 28.
Record the quotient 8 as the next digit in the result. 
Result so far: 18852.67647058
Deduct 272 from 300 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Our division results in 18852.67647058 with a remaining 2.8e-08.