We divide 947483 by 21
We want to figure out the number of times 947483 can be divided by 21.

Let's proceed 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.
Take the next digit (4) from the dividend and append it to 9, then repeat: 94 / 21

Advancing to step 2:
The number 21 fits into 94 4 times, leaving a remainder of 10.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
If we subtract 84 from 94, we get 10.
Grab the next digit (7) from the dividend, add it to 10, then carry on: 107 / 21

Advancing to step 3:
107 divided by 21 is 5 with a remainder of 2.
Use 5 as the next digit of our solution. 
Result so far: 45.0
Subtract 105 from 107 to get 2.
Bring next digit (4) of the dividend behind the 2 and repeat the process: 24 / 21

Going ahead to step 4:
24 divided by 21 is 1 with a remainder of 3.
Put 1 as the next digit of the answer. 
Result so far: 451.0
If we take 21 away from 24, we end up with 3.
Grab the next digit (8) from the dividend, add it to 3, then carry on: 38 / 21

Going ahead to step 5:
21 goes into 38 1 times with a remainder of 17.
Use 1 as the next digit of our solution. 
Result so far: 4511.0
If we subtract 21 from 38, we get 17.
Include the next digit (3) from the dividend after 17, then repeat: 173 / 21

On to step 6:
173 divided by 21 is 8 with a remainder of 5.
The number 8 becomes the next digit in our result. 
Result so far: 45118.0
If we take 168 away from 173, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 7:
If we divide 50 by 21, we get 2 and a remainder of 8.
Put 2 as the next digit of the answer. 
Result so far: 45118.2
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.

Moving on to step 8:
If we divide 80 by 21, we get 3 and a remainder of 17.
Put 3 as the next digit of the answer. 
Result so far: 45118.23
Subtract 63 from 80 to get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Going ahead to step 9:
When dividing 170 by 21, we get 8 with a remainder of 2.
The next digit of our result is 8. 
Result so far: 45118.238
If we subtract 168 from 170, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 10:
If we divide 20 by 21, we get 0 and a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 45118.238
If we take 0 away from 20, we end up 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.

Going ahead to step 11:
21 can be fit into 200 9 times, resulting in a remainder of 11.
The number 9 becomes the next digit in our result. 
Result so far: 45118.23809
Deduct 189 from 200 and we're left with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

On to step 12:
21 can be fit into 110 5 times, resulting in a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 45118.238095
The remainder is 5 after subtracting 105 from 110.
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 13:
21 can be fit into 50 2 times, resulting in a remainder of 8.
The number 2 becomes the next digit in our result. 
Result so far: 45118.2380952
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 14:
21 goes into 80 3 times with a remainder of 17.
Use 3 as the next digit of our solution. 
Result so far: 45118.23809523
Subtracting 63 from 80 leaves us 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.

After the division, we end up with 45118.23809523 and a remainder of 1.7e-08.