We look at the division of 33747677 by 21 
We're looking to find how many times 21 goes into 33747677.

Going ahead to step 1:
The number 21 fits into 3 0 times, leaving a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Fetch the next digit (3) from the dividend, attach it to 3 and continue: 33 / 21

Moving on to step 2:
When dividing 33 by 21, we get 1 with a remainder of 12.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 21 away from 33, we end up with 12.
Bring next digit (7) of the dividend behind the 12 and repeat the process: 127 / 21

Going ahead to step 3:
When dividing 127 by 21, we get 6 with a remainder of 1.
Put 6 as the next digit of the answer. 
Result so far: 16.0
Deduct 126 from 127 and we're left with 1.
Bring next digit (4) of the dividend behind the 1 and repeat the process: 14 / 21

Step 4:
14 divided by 21 is 0 with a remainder of 14.
Record the quotient 0 as the next digit in the result. 
Result so far: 160.0
If we subtract 0 from 14, we get 14.
Bring next digit (7) of the dividend behind the 14 and repeat the process: 147 / 21

On to step 5:
21 can be fit into 147 7 times, resulting in a remainder of 0.
Write down 7 as next digit of the result. 
Result so far: 1607.0
If we subtract 147 from 147, we get 0.
Append the next digit (6) from the dividend to 0 and continue with: 6 / 21

On to step 6:
If we divide 6 by 21, we get 0 and a remainder of 6.
The next digit of our result is 0. 
Result so far: 16070.0
Deduct 0 from 6 and we're left with 6.
Fetch the next digit (7) from the dividend, attach it to 6 and continue: 67 / 21

On to step 7:
The number 21 fits into 67 3 times, leaving a remainder of 4.
Write down 3 as next digit of the result. 
Result so far: 160703.0
Subtract 63 from 67 to get 4.
Append the next digit (7) from the dividend to 4 and continue with: 47 / 21

Going ahead to step 8:
When dividing 47 by 21, we get 2 with a remainder of 5.
Put 2 as the next digit of the answer. 
Result so far: 1607032.0
Subtracting 42 from 47 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 9:
The number 21 fits into 50 2 times, leaving a remainder of 8.
Write down 2 as next digit of the result. 
Result so far: 1607032.2
If we subtract 42 from 50, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 10:
21 goes into 80 3 times with a remainder of 17.
Write down 3 as next digit of the result. 
Result so far: 1607032.23
If we take 63 away from 80, we end up 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.

Advancing to step 11:
The number 21 fits into 170 8 times, leaving a remainder of 2.
The next digit of our result is 8. 
Result so far: 1607032.238
If we take 168 away from 170, we end up 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.

On to step 12:
20 divided by 21 is 0 with a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 1607032.238
Subtract 0 from 20 to 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.

On to step 13:
If we divide 200 by 21, we get 9 and a remainder of 11.
Put 9 as the next digit of the answer. 
Result so far: 1607032.23809
The remainder is 11 after subtracting 189 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Going ahead to step 14:
110 divided by 21 is 5 with a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 1607032.238095
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.

Step 15:
When dividing 50 by 21, we get 2 with a remainder of 8.
Use 2 as the next digit of our solution. 
Result so far: 1607032.2380952
Subtract 42 from 50 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 16:
80 divided by 21 is 3 with a remainder of 17.
The next digit of our result is 3. 
Result so far: 1607032.23809523
The remainder is 17 after subtracting 63 from 80.
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 1607032.23809523 with a remainder of 1.7e-08.