643916 divided by 34 
Our goal is to divide 643916 by 34.

Let's proceed to step 1:
34 goes into 6 0 times with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Bring next digit (4) of the dividend behind the 6 and repeat the process: 64 / 34

On 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
Subtract 34 from 64 to get 30.
Fetch the next digit (3) from the dividend, attach it to 30 and continue: 303 / 34

Advancing to step 3:
34 can be fit into 303 8 times, resulting in a remainder of 31.
The number 8 becomes the next digit in our result. 
Result so far: 18.0
The remainder is 31 after subtracting 272 from 303.
Grab the next digit (9) from the dividend, add it to 31, then carry on: 319 / 34

Let's proceed to step 4:
34 can be fit into 319 9 times, resulting in a remainder of 13.
Use 9 as the next digit of our solution. 
Result so far: 189.0
Subtract 306 from 319 to get 13.
Bring next digit (1) of the dividend behind the 13 and repeat the process: 131 / 34

Going ahead to step 5:
34 can be fit into 131 3 times, resulting in a remainder of 29.
The number 3 becomes the next digit in our result. 
Result so far: 1893.0
Subtracting 102 from 131 leaves us with 29.
Append the next digit (6) from the dividend to 29 and continue with: 296 / 34

Going ahead to step 6:
When dividing 296 by 34, we get 8 with a remainder of 24.
Write down 8 as next digit of the result. 
Result so far: 18938.0
The remainder is 24 after subtracting 272 from 296.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 7:
If we divide 240 by 34, we get 7 and a remainder of 2.
Record the quotient 7 as the next digit in the result. 
Result so far: 18938.7
If we take 238 away from 240, we end up with 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 8:
34 can be fit into 20 0 times, resulting in a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 18938.7
Subtracting 0 from 20 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.

Moving on to step 9:
200 divided by 34 is 5 with a remainder of 30.
The next digit of our result is 5. 
Result so far: 18938.705
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 10:
The number 34 fits into 300 8 times, leaving a remainder of 28.
The next digit of our result is 8. 
Result so far: 18938.7058
Subtract 272 from 300 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

On to step 11:
If we divide 280 by 34, we get 8 and a remainder of 8.
Put 8 as the next digit of the answer. 
Result so far: 18938.70588
Deduct 272 from 280 and we're left 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.

After the division, we end up with 18938.70588 and a remainder of 8e-06.