We're dividing 21979 by 53 
We want to figure out the number of times 21979 can be divided by 53.

On to step 1:
2 divided by 53 is 0 with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 53

Step 2:
21 divided by 53 is 0 with a remainder of 21.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 21 after subtracting 0 from 21.
Take the next digit (9) from the dividend and append it to 21, then repeat: 219 / 53

Let's proceed to step 3:
If we divide 219 by 53, we get 4 and a remainder of 7.
Put 4 as the next digit of the answer. 
Result so far: 4.0
The remainder is 7 after subtracting 212 from 219.
Append the next digit (7) from the dividend to 7 and continue with: 77 / 53

Going ahead to step 4:
53 goes into 77 1 times with a remainder of 24.
Put 1 as the next digit of the answer. 
Result so far: 41.0
If we take 53 away from 77, we end up with 24.
Take the next digit (9) from the dividend and append it to 24, then repeat: 249 / 53

Advancing to step 5:
If we divide 249 by 53, we get 4 and a remainder of 37.
Write down 4 as next digit of the result. 
Result so far: 414.0
Subtract 212 from 249 to get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

On to step 6:
If we divide 370 by 53, we get 6 and a remainder of 52.
Record the quotient 6 as the next digit in the result. 
Result so far: 414.6
The remainder is 52 after subtracting 318 from 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

On to step 7:
When dividing 520 by 53, we get 9 with a remainder of 43.
The number 9 becomes the next digit in our result. 
Result so far: 414.69
Deduct 477 from 520 and we're left with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Let's proceed to step 8:
The number 53 fits into 430 8 times, leaving a remainder of 6.
Write down 8 as next digit of the result. 
Result so far: 414.698
If we take 424 away from 430, 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.

Moving on to step 9:
60 divided by 53 is 1 with a remainder of 7.
The next digit of our result is 1. 
Result so far: 414.6981
If we subtract 53 from 60, 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.

Moving on to step 10:
The number 53 fits into 70 1 times, leaving a remainder of 17.
Put 1 as the next digit of the answer. 
Result so far: 414.69811
The remainder is 17 after subtracting 53 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

The final result is 414.69811 with a remainder of 1.7e-05.