67596902 divided by 21 
We want to figure out the number of times 67596902 can be divided by 21.

Advancing to step 1:
If we divide 6 by 21, we get 0 and a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Bring next digit (7) of the dividend behind the 6 and repeat the process: 67 / 21

On to step 2:
67 divided by 21 is 3 with a remainder of 4.
Write down 3 as next digit of the result. 
Result so far: 3.0
The remainder is 4 after subtracting 63 from 67.
Bring next digit (5) of the dividend behind the 4 and repeat the process: 45 / 21

Advancing to step 3:
If we divide 45 by 21, we get 2 and a remainder of 3.
Use 2 as the next digit of our solution. 
Result so far: 32.0
Subtracting 42 from 45 leaves us with 3.
Bring next digit (9) of the dividend behind the 3 and repeat the process: 39 / 21

Moving on to step 4:
21 goes into 39 1 times with a remainder of 18.
The number 1 becomes the next digit in our result. 
Result so far: 321.0
Subtract 21 from 39 to get 18.
Bring next digit (6) of the dividend behind the 18 and repeat the process: 186 / 21

Moving on to step 5:
21 can be fit into 186 8 times, resulting in a remainder of 18.
Record the quotient 8 as the next digit in the result. 
Result so far: 3218.0
The remainder is 18 after subtracting 168 from 186.
Include the next digit (9) from the dividend after 18, then repeat: 189 / 21

Let's proceed to step 6:
21 can be fit into 189 9 times, resulting in a remainder of 0.
Use 9 as the next digit of our solution. 
Result so far: 32189.0
Subtract 189 from 189 to get 0.
Take the next digit (0) from the dividend and append it to 0, then repeat: 0 / 21

Let's proceed to step 7:
21 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 321890.0
The remainder is 0 after subtracting 0 from 0.
Grab the next digit (2) from the dividend, add it to 0, then carry on: 2 / 21

Let's proceed to step 8:
21 goes into 2 0 times with a remainder of 2.
The next digit of our result is 0. 
Result so far: 3218900.0
Deduct 0 from 2 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.

Moving on to step 9:
20 divided by 21 is 0 with a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 3218900.0
Subtracting 0 from 20 leaves us 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.

Moving on to step 10:
The number 21 fits into 200 9 times, leaving a remainder of 11.
The number 9 becomes the next digit in our result. 
Result so far: 3218900.09
If we subtract 189 from 200, 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.

Going ahead to step 11:
21 goes into 110 5 times with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 3218900.095
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 12:
The number 21 fits into 50 2 times, leaving a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 3218900.0952
Subtracting 42 from 50 leaves us 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.

Moving on to step 13:
21 goes into 80 3 times with a remainder of 17.
Put 3 as the next digit of the answer. 
Result so far: 3218900.09523
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.

On to step 14:
When dividing 170 by 21, we get 8 with a remainder of 2.
The next digit of our result is 8. 
Result so far: 3218900.095238
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 15:
When dividing 20 by 21, we get 0 with a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 3218900.095238
The remainder is 20 after subtracting 0 from 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 16:
21 can be fit into 200 9 times, resulting in a remainder of 11.
The next digit of our result is 9. 
Result so far: 3218900.09523809
If we take 189 away from 200, we end up 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.

The final outcome is 3218900.09523809, with a leftover of 1.1e-08.