We're dividing 34012626 by 21 
Let's see how many times 21 fits into 34012626.

Step 1:
21 can be fit into 3 0 times, resulting in a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Take the next digit (4) from the dividend and append it to 3, then repeat: 34 / 21

Advancing to step 2:
The number 21 fits into 34 1 times, leaving a remainder of 13.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 21 from 34 to get 13.
Append the next digit (0) from the dividend to 13 and continue with: 130 / 21

Advancing to step 3:
The number 21 fits into 130 6 times, leaving a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 16.0
If we subtract 126 from 130, we get 4.
Append the next digit (1) from the dividend to 4 and continue with: 41 / 21

Moving on to step 4:
41 divided by 21 is 1 with a remainder of 20.
Use 1 as the next digit of our solution. 
Result so far: 161.0
The remainder is 20 after subtracting 21 from 41.
Grab the next digit (2) from the dividend, add it to 20, then carry on: 202 / 21

Moving on to step 5:
21 can be fit into 202 9 times, resulting in a remainder of 13.
Put 9 as the next digit of the answer. 
Result so far: 1619.0
Subtract 189 from 202 to get 13.
Grab the next digit (6) from the dividend, add it to 13, then carry on: 136 / 21

Step 6:
136 divided by 21 is 6 with a remainder of 10.
The number 6 becomes the next digit in our result. 
Result so far: 16196.0
If we subtract 126 from 136, we get 10.
Fetch the next digit (2) from the dividend, attach it to 10 and continue: 102 / 21

Going ahead to step 7:
The number 21 fits into 102 4 times, leaving a remainder of 18.
Use 4 as the next digit of our solution. 
Result so far: 161964.0
Subtracting 84 from 102 leaves us with 18.
Fetch the next digit (6) from the dividend, attach it to 18 and continue: 186 / 21

Moving on to step 8:
21 can be fit into 186 8 times, resulting in a remainder of 18.
Write down 8 as next digit of the result. 
Result so far: 1619648.0
If we take 168 away from 186, we end up 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.

Advancing to step 9:
The number 21 fits into 180 8 times, leaving a remainder of 12.
The number 8 becomes the next digit in our result. 
Result so far: 1619648.8
Subtracting 168 from 180 leaves us 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.

Going ahead to step 10:
21 goes into 120 5 times with a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 1619648.85
If we subtract 105 from 120, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 11:
21 can be fit into 150 7 times, resulting in a remainder of 3.
Write down 7 as next digit of the result. 
Result so far: 1619648.857
Subtract 147 from 150 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 12:
21 goes into 30 1 times with a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 1619648.8571
If we subtract 21 from 30, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 13:
When dividing 90 by 21, we get 4 with a remainder of 6.
Use 4 as the next digit of our solution. 
Result so far: 1619648.85714
If we take 84 away from 90, we end up 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.

On to step 14:
21 can be fit into 60 2 times, resulting in a remainder of 18.
Record the quotient 2 as the next digit in the result. 
Result so far: 1619648.857142
Subtracting 42 from 60 leaves us 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.

Advancing to step 15:
21 goes into 180 8 times with a remainder of 12.
The next digit of our result is 8. 
Result so far: 1619648.8571428
Deduct 168 from 180 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.

Moving on to step 16:
If we divide 120 by 21, we get 5 and a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 1619648.85714285
If we subtract 105 from 120, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

The final outcome is 1619648.85714285, with a leftover of 1.5e-08.