172439 divided by 34 
We want to figure out the number of times 172439 can be divided by 34.

Step 1:
If we divide 1 by 34, we get 0 and a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Take the next digit (7) from the dividend and append it to 1, then repeat: 17 / 34

Going ahead to step 2:
17 divided by 34 is 0 with a remainder of 17.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 17 and we're left with 17.
Grab the next digit (2) from the dividend, add it to 17, then carry on: 172 / 34

Going ahead to step 3:
172 divided by 34 is 5 with a remainder of 2.
Write down 5 as next digit of the result. 
Result so far: 5.0
Subtract 170 from 172 to get 2.
Append the next digit (4) from the dividend to 2 and continue with: 24 / 34

Advancing to step 4:
The number 34 fits into 24 0 times, leaving a remainder of 24.
Write down 0 as next digit of the result. 
Result so far: 50.0
Deduct 0 from 24 and we're left with 24.
Include the next digit (3) from the dividend after 24, then repeat: 243 / 34

Moving on to step 5:
The number 34 fits into 243 7 times, leaving a remainder of 5.
Write down 7 as next digit of the result. 
Result so far: 507.0
The remainder is 5 after subtracting 238 from 243.
Take the next digit (9) from the dividend and append it to 5, then repeat: 59 / 34

Step 6:
34 can be fit into 59 1 times, resulting in a remainder of 25.
Write down 1 as next digit of the result. 
Result so far: 5071.0
If we take 34 away from 59, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Step 7:
34 can be fit into 250 7 times, resulting in a remainder of 12.
The next digit of our result is 7. 
Result so far: 5071.7
Deduct 238 from 250 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 8:
If we divide 120 by 34, we get 3 and a remainder of 18.
The next digit of our result is 3. 
Result so far: 5071.73
Deduct 102 from 120 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 9:
If we divide 180 by 34, we get 5 and a remainder of 10.
Record the quotient 5 as the next digit in the result. 
Result so far: 5071.735
Deduct 170 from 180 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 10:
When dividing 100 by 34, we get 2 with a remainder of 32.
The number 2 becomes the next digit in our result. 
Result so far: 5071.7352
If we take 68 away from 100, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Moving on to step 11:
When dividing 320 by 34, we get 9 with a remainder of 14.
Record the quotient 9 as the next digit in the result. 
Result so far: 5071.73529
Subtracting 306 from 320 leaves us with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Going ahead to step 12:
140 divided by 34 is 4 with a remainder of 4.
The next digit of our result is 4. 
Result so far: 5071.735294
Subtract 136 from 140 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 13:
40 divided by 34 is 1 with a remainder of 6.
Write down 1 as next digit of the result. 
Result so far: 5071.7352941
Deduct 34 from 40 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 14:
34 goes into 60 1 times with a remainder of 26.
Write down 1 as next digit of the result. 
Result so far: 5071.73529411
If we take 34 away from 60, 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.

The final result is 5071.73529411 with a remainder of 2.6e-08.