Let's divide 36423734 by 21
We want to divide 36423734 by 21.

Step 1:
The number 21 fits into 3 0 times, leaving a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Bring next digit (6) of the dividend behind the 3 and repeat the process: 36 / 21

Advancing to step 2:
36 divided by 21 is 1 with a remainder of 15.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 21 from 36 and we're left with 15.
Grab the next digit (4) from the dividend, add it to 15, then carry on: 154 / 21

Going ahead to step 3:
154 divided by 21 is 7 with a remainder of 7.
The number 7 becomes the next digit in our result. 
Result so far: 17.0
Deduct 147 from 154 and we're left with 7.
Take the next digit (2) from the dividend and append it to 7, then repeat: 72 / 21

Moving on to step 4:
When dividing 72 by 21, we get 3 with a remainder of 9.
Put 3 as the next digit of the answer. 
Result so far: 173.0
Subtracting 63 from 72 leaves us with 9.
Take the next digit (3) from the dividend and append it to 9, then repeat: 93 / 21

Going ahead to step 5:
If we divide 93 by 21, we get 4 and a remainder of 9.
Write down 4 as next digit of the result. 
Result so far: 1734.0
The remainder is 9 after subtracting 84 from 93.
Grab the next digit (7) from the dividend, add it to 9, then carry on: 97 / 21

Let's proceed to step 6:
When dividing 97 by 21, we get 4 with a remainder of 13.
Record the quotient 4 as the next digit in the result. 
Result so far: 17344.0
If we take 84 away from 97, we end up with 13.
Fetch the next digit (3) from the dividend, attach it to 13 and continue: 133 / 21

Moving on to step 7:
133 divided by 21 is 6 with a remainder of 7.
Put 6 as the next digit of the answer. 
Result so far: 173446.0
If we take 126 away from 133, we end up with 7.
Bring next digit (4) of the dividend behind the 7 and repeat the process: 74 / 21

Advancing to step 8:
74 divided by 21 is 3 with a remainder of 11.
Write down 3 as next digit of the result. 
Result so far: 1734463.0
If we subtract 63 from 74, we get 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 9:
The number 21 fits into 110 5 times, leaving a remainder of 5.
The next digit of our result is 5. 
Result so far: 1734463.5
Subtracting 105 from 110 leaves us 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.

Going ahead to step 10:
21 goes into 50 2 times with a remainder of 8.
The next digit of our result is 2. 
Result so far: 1734463.52
If we take 42 away from 50, we end up 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 11:
When dividing 80 by 21, we get 3 with a remainder of 17.
Write down 3 as next digit of the result. 
Result so far: 1734463.523
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.

Let's proceed to step 12:
170 divided by 21 is 8 with a remainder of 2.
The next digit of our result is 8. 
Result so far: 1734463.5238
Deduct 168 from 170 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 13:
If we divide 20 by 21, we get 0 and a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 1734463.5238
If we subtract 0 from 20, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 14:
21 goes into 200 9 times with a remainder of 11.
Record the quotient 9 as the next digit in the result. 
Result so far: 1734463.523809
Subtracting 189 from 200 leaves us 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.

Let's proceed to step 15:
110 divided by 21 is 5 with a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 1734463.5238095
Deduct 105 from 110 and we're left 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.

Going ahead to step 16:
21 can be fit into 50 2 times, resulting in a remainder of 8.
Write down 2 as next digit of the result. 
Result so far: 1734463.52380952
If we take 42 away from 50, we end up 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.

The final result is 1734463.52380952 with a remainder of 8e-09.