We divide 91662942 by 21
Our goal is to divide 91662942 by 21.

Moving on to step 1:
21 can be fit into 9 0 times, resulting in a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Grab the next digit (1) from the dividend, add it to 9, then carry on: 91 / 21

Let's proceed to step 2:
21 goes into 91 4 times with a remainder of 7.
The next digit of our result is 4. 
Result so far: 4.0
If we take 84 away from 91, we end up with 7.
Take the next digit (6) from the dividend and append it to 7, then repeat: 76 / 21

Step 3:
If we divide 76 by 21, we get 3 and a remainder of 13.
Use 3 as the next digit of our solution. 
Result so far: 43.0
The remainder is 13 after subtracting 63 from 76.
Include the next digit (6) from the dividend after 13, then repeat: 136 / 21

Going ahead to step 4:
If we divide 136 by 21, we get 6 and a remainder of 10.
Put 6 as the next digit of the answer. 
Result so far: 436.0
If we subtract 126 from 136, we get 10.
Fetch the next digit (2) from the dividend, attach it to 10 and continue: 102 / 21

Step 5:
If we divide 102 by 21, we get 4 and a remainder of 18.
Put 4 as the next digit of the answer. 
Result so far: 4364.0
Deduct 84 from 102 and we're left with 18.
Fetch the next digit (9) from the dividend, attach it to 18 and continue: 189 / 21

Let's proceed to step 6:
When dividing 189 by 21, we get 9 with a remainder of 0.
Put 9 as the next digit of the answer. 
Result so far: 43649.0
The remainder is 0 after subtracting 189 from 189.
Include the next digit (4) from the dividend after 0, then repeat: 4 / 21

On to step 7:
4 divided by 21 is 0 with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 436490.0
Deduct 0 from 4 and we're left with 4.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 21

Let's proceed to step 8:
If we divide 42 by 21, we get 2 and a remainder of 0.
Write down 2 as next digit of the result. 
Result so far: 4364902.0
Subtracting 42 from 42 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 9:
21 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 4364902.0
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 10:
0 divided by 21 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 4364902.0
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 4364902.0 with a remainder of 0.0.