33377837 ÷ 21 
We're looking to find how many times 21 goes into 33377837.

On to step 1:
3 divided by 21 is 0 with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Fetch the next digit (3) from the dividend, attach it to 3 and continue: 33 / 21

On to step 2:
21 can be fit into 33 1 times, resulting in a remainder of 12.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 21 from 33 leaves us with 12.
Bring next digit (3) of the dividend behind the 12 and repeat the process: 123 / 21

Going ahead to step 3:
When dividing 123 by 21, we get 5 with a remainder of 18.
Put 5 as the next digit of the answer. 
Result so far: 15.0
If we subtract 105 from 123, we get 18.
Append the next digit (7) from the dividend to 18 and continue with: 187 / 21

Going ahead to step 4:
When dividing 187 by 21, we get 8 with a remainder of 19.
The number 8 becomes the next digit in our result. 
Result so far: 158.0
The remainder is 19 after subtracting 168 from 187.
Fetch the next digit (7) from the dividend, attach it to 19 and continue: 197 / 21

Let's proceed to step 5:
When dividing 197 by 21, we get 9 with a remainder of 8.
Put 9 as the next digit of the answer. 
Result so far: 1589.0
Subtract 189 from 197 to get 8.
Take the next digit (8) from the dividend and append it to 8, then repeat: 88 / 21

Moving on to step 6:
The number 21 fits into 88 4 times, leaving a remainder of 4.
Use 4 as the next digit of our solution. 
Result so far: 15894.0
If we take 84 away from 88, we end up with 4.
Take the next digit (3) from the dividend and append it to 4, then repeat: 43 / 21

Moving on to step 7:
21 can be fit into 43 2 times, resulting in a remainder of 1.
Put 2 as the next digit of the answer. 
Result so far: 158942.0
The remainder is 1 after subtracting 42 from 43.
Append the next digit (7) from the dividend to 1 and continue with: 17 / 21

Moving on to step 8:
21 goes into 17 0 times with a remainder of 17.
Record the quotient 0 as the next digit in the result. 
Result so far: 1589420.0
Subtracting 0 from 17 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.

Going ahead to step 9:
21 can be fit into 170 8 times, resulting in a remainder of 2.
Write down 8 as next digit of the result. 
Result so far: 1589420.8
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.

Moving on to step 10:
When dividing 20 by 21, we get 0 with a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 1589420.8
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.

Advancing to step 11:
If we divide 200 by 21, we get 9 and a remainder of 11.
The number 9 becomes the next digit in our result. 
Result so far: 1589420.809
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.

Let's proceed to step 12:
110 divided by 21 is 5 with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 1589420.8095
Subtract 105 from 110 to get 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 13:
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: 1589420.80952
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.

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: 1589420.809523
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 15:
The number 21 fits into 170 8 times, leaving a remainder of 2.
The next digit of our result is 8. 
Result so far: 1589420.8095238
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.

Let's proceed to step 16:
The number 21 fits into 20 0 times, leaving a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 1589420.8095238
Deduct 0 from 20 and we're left 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.

The final outcome is 1589420.8095238, with a leftover of 2e-08.