We look at the division of 29935800 by 21 
Our goal is to divide 29935800 by 21.

Going ahead to step 1:
When dividing 2 by 21, we get 0 with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Grab the next digit (9) from the dividend, add it to 2, then carry on: 29 / 21

Let's proceed to step 2:
The number 21 fits into 29 1 times, leaving a remainder of 8.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 21 from 29 and we're left with 8.
Grab the next digit (9) from the dividend, add it to 8, then carry on: 89 / 21

On to step 3:
The number 21 fits into 89 4 times, leaving a remainder of 5.
Write down 4 as next digit of the result. 
Result so far: 14.0
Subtracting 84 from 89 leaves us with 5.
Grab the next digit (3) from the dividend, add it to 5, then carry on: 53 / 21

Going ahead to step 4:
The number 21 fits into 53 2 times, leaving a remainder of 11.
Put 2 as the next digit of the answer. 
Result so far: 142.0
If we take 42 away from 53, we end up with 11.
Bring next digit (5) of the dividend behind the 11 and repeat the process: 115 / 21

Moving on to step 5:
When dividing 115 by 21, we get 5 with a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 1425.0
If we take 105 away from 115, we end up with 10.
Grab the next digit (8) from the dividend, add it to 10, then carry on: 108 / 21

Going ahead to step 6:
21 can be fit into 108 5 times, resulting in a remainder of 3.
The next digit of our result is 5. 
Result so far: 14255.0
If we subtract 105 from 108, we get 3.
Include the next digit (0) from the dividend after 3, then repeat: 30 / 21

Advancing to step 7:
If we divide 30 by 21, we get 1 and a remainder of 9.
The next digit of our result is 1. 
Result so far: 142551.0
Deduct 21 from 30 and we're left with 9.
Include the next digit (0) from the dividend after 9, then repeat: 90 / 21

Going ahead to step 8:
The number 21 fits into 90 4 times, leaving a remainder of 6.
The next digit of our result is 4. 
Result so far: 1425514.0
Deduct 84 from 90 and we're left 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.

On to step 9:
If we divide 60 by 21, we get 2 and a remainder of 18.
Put 2 as the next digit of the answer. 
Result so far: 1425514.2
The remainder is 18 after subtracting 42 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Advancing to step 10:
21 goes into 180 8 times with a remainder of 12.
Record the quotient 8 as the next digit in the result. 
Result so far: 1425514.28
Subtracting 168 from 180 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 11:
The number 21 fits into 120 5 times, leaving a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 1425514.285
Subtract 105 from 120 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Moving on to step 12:
If we divide 150 by 21, we get 7 and a remainder of 3.
Put 7 as the next digit of the answer. 
Result so far: 1425514.2857
Deduct 147 from 150 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 13:
If we divide 30 by 21, we get 1 and a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 1425514.28571
Subtract 21 from 30 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Advancing to step 14:
21 can be fit into 90 4 times, resulting in a remainder of 6.
Write down 4 as next digit of the result. 
Result so far: 1425514.285714
If we take 84 away from 90, 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.

Advancing to step 15:
21 can be fit into 60 2 times, resulting in a remainder of 18.
Record the quotient 2 as the next digit in the result. 
Result so far: 1425514.2857142
Subtracting 42 from 60 leaves us with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Moving on to step 16:
The number 21 fits into 180 8 times, leaving a remainder of 12.
Write down 8 as next digit of the result. 
Result so far: 1425514.28571428
If we take 168 away from 180, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

The quotient of the division is 1425514.28571428, and the remainder is 1.2e-08.