134386 divided by 21 
We're looking to find how many times 21 goes into 134386.

Advancing to step 1:
21 goes into 1 0 times with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Bring next digit (3) of the dividend behind the 1 and repeat the process: 13 / 21

Let's proceed to step 2:
When dividing 13 by 21, we get 0 with a remainder of 13.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 13, we get 13.
Include the next digit (4) from the dividend after 13, then repeat: 134 / 21

Going ahead to step 3:
21 can be fit into 134 6 times, resulting in a remainder of 8.
Use 6 as the next digit of our solution. 
Result so far: 6.0
Subtracting 126 from 134 leaves us with 8.
Take the next digit (3) from the dividend and append it to 8, then repeat: 83 / 21

Let's proceed to step 4:
The number 21 fits into 83 3 times, leaving a remainder of 20.
Put 3 as the next digit of the answer. 
Result so far: 63.0
If we take 63 away from 83, we end up with 20.
Bring next digit (8) of the dividend behind the 20 and repeat the process: 208 / 21

Moving on to step 5:
The number 21 fits into 208 9 times, leaving a remainder of 19.
Record the quotient 9 as the next digit in the result. 
Result so far: 639.0
Deduct 189 from 208 and we're left with 19.
Take the next digit (6) from the dividend and append it to 19, then repeat: 196 / 21

On to step 6:
The number 21 fits into 196 9 times, leaving a remainder of 7.
The next digit of our result is 9. 
Result so far: 6399.0
The remainder is 7 after subtracting 189 from 196.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 7:
The number 21 fits into 70 3 times, leaving a remainder of 7.
Use 3 as the next digit of our solution. 
Result so far: 6399.3
If we take 63 away from 70, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 8:
When dividing 70 by 21, we get 3 with a remainder of 7.
The next digit of our result is 3. 
Result so far: 6399.33
If we subtract 63 from 70, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Our division results in 6399.33 with a remaining 0.007.