We're dividing 988414 by 21 
We're looking to find how many times 21 goes into 988414.

Going ahead to step 1:
The number 21 fits into 9 0 times, leaving a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Grab the next digit (8) from the dividend, add it to 9, then carry on: 98 / 21

On to step 2:
98 divided by 21 is 4 with a remainder of 14.
Write down 4 as next digit of the result. 
Result so far: 4.0
The remainder is 14 after subtracting 84 from 98.
Take the next digit (8) from the dividend and append it to 14, then repeat: 148 / 21

Let's proceed to step 3:
If we divide 148 by 21, we get 7 and a remainder of 1.
Record the quotient 7 as the next digit in the result. 
Result so far: 47.0
Subtract 147 from 148 to get 1.
Include the next digit (4) from the dividend after 1, then repeat: 14 / 21

Step 4:
21 can be fit into 14 0 times, resulting in a remainder of 14.
Write down 0 as next digit of the result. 
Result so far: 470.0
Deduct 0 from 14 and we're left with 14.
Take the next digit (1) from the dividend and append it to 14, then repeat: 141 / 21

On to step 5:
141 divided by 21 is 6 with a remainder of 15.
Write down 6 as next digit of the result. 
Result so far: 4706.0
If we take 126 away from 141, we end up with 15.
Fetch the next digit (4) from the dividend, attach it to 15 and continue: 154 / 21

Moving on to step 6:
21 goes into 154 7 times with a remainder of 7.
Record the quotient 7 as the next digit in the result. 
Result so far: 47067.0
Subtracting 147 from 154 leaves us 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 7:
If we divide 70 by 21, we get 3 and a remainder of 7.
Record the quotient 3 as the next digit in the result. 
Result so far: 47067.3
The remainder is 7 after subtracting 63 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 8:
If we divide 70 by 21, we get 3 and a remainder of 7.
Use 3 as the next digit of our solution. 
Result so far: 47067.33
The remainder is 7 after subtracting 63 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

The final outcome is 47067.33, with a leftover of 0.007.