367424 ÷ 21 
Our goal is to divide 367424 by 21.

Advancing to step 1:
21 goes into 3 0 times with 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.
Fetch the next digit (6) from the dividend, attach it to 3 and continue: 36 / 21

Going ahead to step 2:
When dividing 36 by 21, we get 1 with a remainder of 15.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 21 from 36 leaves us with 15.
Take the next digit (7) from the dividend and append it to 15, then repeat: 157 / 21

Step 3:
If we divide 157 by 21, we get 7 and a remainder of 10.
Record the quotient 7 as the next digit in the result. 
Result so far: 17.0
The remainder is 10 after subtracting 147 from 157.
Bring next digit (4) of the dividend behind the 10 and repeat the process: 104 / 21

Step 4:
21 can be fit into 104 4 times, resulting in a remainder of 20.
Use 4 as the next digit of our solution. 
Result so far: 174.0
Deduct 84 from 104 and we're left with 20.
Append the next digit (2) from the dividend to 20 and continue with: 202 / 21

Advancing to step 5:
21 goes into 202 9 times with a remainder of 13.
The number 9 becomes the next digit in our result. 
Result so far: 1749.0
Subtract 189 from 202 to get 13.
Append the next digit (4) from the dividend to 13 and continue with: 134 / 21

On to step 6:
If we divide 134 by 21, we get 6 and a remainder of 8.
Put 6 as the next digit of the answer. 
Result so far: 17496.0
Subtract 126 from 134 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 7:
21 goes into 80 3 times with a remainder of 17.
The next digit of our result is 3. 
Result so far: 17496.3
Deduct 63 from 80 and we're left with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Let's proceed to step 8:
170 divided by 21 is 8 with a remainder of 2.
The number 8 becomes the next digit in our result. 
Result so far: 17496.38
If we take 168 away from 170, we end up 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.

Let's proceed to step 9:
The number 21 fits into 20 0 times, leaving a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 17496.38
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.

Moving on to step 10:
When dividing 200 by 21, we get 9 with a remainder of 11.
Record the quotient 9 as the next digit in the result. 
Result so far: 17496.3809
If we subtract 189 from 200, we get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Advancing to step 11:
The number 21 fits into 110 5 times, leaving a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 17496.38095
Subtract 105 from 110 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 12:
21 goes into 50 2 times with a remainder of 8.
The number 2 becomes the next digit in our result. 
Result so far: 17496.380952
Subtracting 42 from 50 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.

Let's proceed to step 13:
80 divided by 21 is 3 with a remainder of 17.
The next digit of our result is 3. 
Result so far: 17496.3809523
The remainder is 17 after subtracting 63 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Let's proceed to step 14:
When dividing 170 by 21, we get 8 with a remainder of 2.
The number 8 becomes the next digit in our result. 
Result so far: 17496.38095238
The remainder is 2 after subtracting 168 from 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

The final outcome is 17496.38095238, with a leftover of 2e-09.