We're dividing 643474 by 34 
We want to divide 643474 by 34.

Step 1:
The number 34 fits into 6 0 times, leaving a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Include the next digit (4) from the dividend after 6, then repeat: 64 / 34

On to step 2:
64 divided by 34 is 1 with a remainder of 30.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 34 from 64, we get 30.
Include the next digit (3) from the dividend after 30, then repeat: 303 / 34

Moving on to step 3:
The number 34 fits into 303 8 times, leaving a remainder of 31.
Put 8 as the next digit of the answer. 
Result so far: 18.0
Deduct 272 from 303 and we're left with 31.
Append the next digit (4) from the dividend to 31 and continue with: 314 / 34

On to step 4:
34 can be fit into 314 9 times, resulting in a remainder of 8.
The next digit of our result is 9. 
Result so far: 189.0
If we subtract 306 from 314, we get 8.
Append the next digit (7) from the dividend to 8 and continue with: 87 / 34

Advancing to step 5:
If we divide 87 by 34, we get 2 and a remainder of 19.
Use 2 as the next digit of our solution. 
Result so far: 1892.0
Subtracting 68 from 87 leaves us with 19.
Grab the next digit (4) from the dividend, add it to 19, then carry on: 194 / 34

Step 6:
34 can be fit into 194 5 times, resulting in a remainder of 24.
Use 5 as the next digit of our solution. 
Result so far: 18925.0
If we subtract 170 from 194, we 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.

Let's proceed to step 7:
34 goes into 240 7 times with a remainder of 2.
Put 7 as the next digit of the answer. 
Result so far: 18925.7
Deduct 238 from 240 and we're left 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.

Step 8:
If we divide 20 by 34, we get 0 and a remainder of 20.
The next digit of our result is 0. 
Result so far: 18925.7
Deduct 0 from 20 and we're left 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.

Step 9:
200 divided by 34 is 5 with a remainder of 30.
Put 5 as the next digit of the answer. 
Result so far: 18925.705
Subtracting 170 from 200 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 10:
When dividing 300 by 34, we get 8 with a remainder of 28.
The next digit of our result is 8. 
Result so far: 18925.7058
If we subtract 272 from 300, we 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.

Going ahead to step 11:
280 divided by 34 is 8 with a remainder of 8.
Use 8 as the next digit of our solution. 
Result so far: 18925.70588
Subtracting 272 from 280 leaves us 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.

The final outcome is 18925.70588, with a leftover of 8e-06.