We're dividing 421846 by 34 
Let's see how many times 34 fits into 421846.

Step 1:
If we divide 4 by 34, we get 0 and a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Take the next digit (2) from the dividend and append it to 4, then repeat: 42 / 34

Going ahead to step 2:
34 can be fit into 42 1 times, resulting in a remainder of 8.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 34 from 42 to get 8.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 34

Step 3:
81 divided by 34 is 2 with a remainder of 13.
Use 2 as the next digit of our solution. 
Result so far: 12.0
Subtracting 68 from 81 leaves us with 13.
Take the next digit (8) from the dividend and append it to 13, then repeat: 138 / 34

Going ahead to step 4:
34 goes into 138 4 times with a remainder of 2.
The number 4 becomes the next digit in our result. 
Result so far: 124.0
Subtracting 136 from 138 leaves us with 2.
Append the next digit (4) from the dividend to 2 and continue with: 24 / 34

On to step 5:
34 can be fit into 24 0 times, resulting in a remainder of 24.
The next digit of our result is 0. 
Result so far: 1240.0
Deduct 0 from 24 and we're left with 24.
Fetch the next digit (6) from the dividend, attach it to 24 and continue: 246 / 34

Moving on to step 6:
If we divide 246 by 34, we get 7 and a remainder of 8.
Write down 7 as next digit of the result. 
Result so far: 12407.0
Deduct 238 from 246 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.

Step 7:
34 goes into 80 2 times with a remainder of 12.
Put 2 as the next digit of the answer. 
Result so far: 12407.2
If we subtract 68 from 80, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 8:
34 goes into 120 3 times with a remainder of 18.
The next digit of our result is 3. 
Result so far: 12407.23
Subtract 102 from 120 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Moving on to step 9:
The number 34 fits into 180 5 times, leaving a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 12407.235
Subtracting 170 from 180 leaves us 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.

Going ahead to step 10:
34 can be fit into 100 2 times, resulting in a remainder of 32.
Write down 2 as next digit of the result. 
Result so far: 12407.2352
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.

Going ahead to step 11:
34 goes into 320 9 times with a remainder of 14.
Record the quotient 9 as the next digit in the result. 
Result so far: 12407.23529
Deduct 306 from 320 and we're left 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.

Moving on to step 12:
140 divided by 34 is 4 with a remainder of 4.
The number 4 becomes the next digit in our result. 
Result so far: 12407.235294
Subtracting 136 from 140 leaves us with 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:
34 goes into 40 1 times with a remainder of 6.
Record the quotient 1 as the next digit in the result. 
Result so far: 12407.2352941
If we subtract 34 from 40, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 14:
60 divided by 34 is 1 with a remainder of 26.
Put 1 as the next digit of the answer. 
Result so far: 12407.23529411
Deduct 34 from 60 and we're left 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 outcome is 12407.23529411, with a leftover of 2.6e-08.