412601 divided by 21 
Our goal is to divide 412601 by 21.

Advancing to step 1:
21 can be fit into 4 0 times, resulting in a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Take the next digit (1) from the dividend and append it to 4, then repeat: 41 / 21

Going ahead to step 2:
21 goes into 41 1 times with a remainder of 20.
The next digit of our result is 1. 
Result so far: 1.0
If we take 21 away from 41, we end up with 20.
Bring next digit (2) of the dividend behind the 20 and repeat the process: 202 / 21

Let's proceed to step 3:
21 can be fit into 202 9 times, resulting in a remainder of 13.
Write down 9 as next digit of the result. 
Result so far: 19.0
The remainder is 13 after subtracting 189 from 202.
Take the next digit (6) from the dividend and append it to 13, then repeat: 136 / 21

Let's proceed to step 4:
21 goes into 136 6 times with a remainder of 10.
The number 6 becomes the next digit in our result. 
Result so far: 196.0
Subtract 126 from 136 to get 10.
Append the next digit (0) from the dividend to 10 and continue with: 100 / 21

Step 5:
21 can be fit into 100 4 times, resulting in a remainder of 16.
The number 4 becomes the next digit in our result. 
Result so far: 1964.0
Subtract 84 from 100 to get 16.
Bring next digit (1) of the dividend behind the 16 and repeat the process: 161 / 21

Going ahead to step 6:
161 divided by 21 is 7 with a remainder of 14.
Put 7 as the next digit of the answer. 
Result so far: 19647.0
The remainder is 14 after subtracting 147 from 161.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 7:
When dividing 140 by 21, we get 6 with a remainder of 14.
Write down 6 as next digit of the result. 
Result so far: 19647.6
Subtracting 126 from 140 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.

Step 8:
21 goes into 140 6 times with a remainder of 14.
Record the quotient 6 as the next digit in the result. 
Result so far: 19647.66
If we take 126 away from 140, we end up 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.

The final outcome is 19647.66, with a leftover of 0.014.