Let's divide 67088592 by 21
Our goal is to divide 67088592 by 21.

On to step 1:
6 divided by 21 is 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Append the next digit (7) from the dividend to 6 and continue with: 67 / 21

Advancing to step 2:
21 can be fit into 67 3 times, resulting in a remainder of 4.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtract 63 from 67 to get 4.
Fetch the next digit (0) from the dividend, attach it to 4 and continue: 40 / 21

Step 3:
If we divide 40 by 21, we get 1 and a remainder of 19.
Write down 1 as next digit of the result. 
Result so far: 31.0
If we subtract 21 from 40, we get 19.
Bring next digit (8) of the dividend behind the 19 and repeat the process: 198 / 21

On to step 4:
The number 21 fits into 198 9 times, leaving a remainder of 9.
Put 9 as the next digit of the answer. 
Result so far: 319.0
If we subtract 189 from 198, we get 9.
Append the next digit (8) from the dividend to 9 and continue with: 98 / 21

Going ahead to step 5:
The number 21 fits into 98 4 times, leaving a remainder of 14.
The number 4 becomes the next digit in our result. 
Result so far: 3194.0
Subtract 84 from 98 to get 14.
Take the next digit (5) from the dividend and append it to 14, then repeat: 145 / 21

Advancing to step 6:
145 divided by 21 is 6 with a remainder of 19.
The number 6 becomes the next digit in our result. 
Result so far: 31946.0
Subtract 126 from 145 to get 19.
Bring next digit (9) of the dividend behind the 19 and repeat the process: 199 / 21

Advancing to step 7:
21 goes into 199 9 times with a remainder of 10.
Write down 9 as next digit of the result. 
Result so far: 319469.0
Subtract 189 from 199 to get 10.
Grab the next digit (2) from the dividend, add it to 10, then carry on: 102 / 21

Going ahead to step 8:
102 divided by 21 is 4 with a remainder of 18.
The next digit of our result is 4. 
Result so far: 3194694.0
Deduct 84 from 102 and we're left 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 9:
180 divided by 21 is 8 with a remainder of 12.
Write down 8 as next digit of the result. 
Result so far: 3194694.8
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.

Step 10:
21 can be fit into 120 5 times, resulting in a remainder of 15.
Put 5 as the next digit of the answer. 
Result so far: 3194694.85
The remainder is 15 after subtracting 105 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 11:
When dividing 150 by 21, we get 7 with a remainder of 3.
Write down 7 as next digit of the result. 
Result so far: 3194694.857
Subtract 147 from 150 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 12:
When dividing 30 by 21, we get 1 with a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 3194694.8571
If we subtract 21 from 30, we 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.

Step 13:
If we divide 90 by 21, we get 4 and a remainder of 6.
The next digit of our result is 4. 
Result so far: 3194694.85714
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.

Let's proceed to step 14:
The number 21 fits into 60 2 times, leaving a remainder of 18.
The number 2 becomes the next digit in our result. 
Result so far: 3194694.857142
If we subtract 42 from 60, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 15:
If we divide 180 by 21, we get 8 and a remainder of 12.
Use 8 as the next digit of our solution. 
Result so far: 3194694.8571428
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.

On to step 16:
120 divided by 21 is 5 with a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 3194694.85714285
Deduct 105 from 120 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

The quotient of the division is 3194694.85714285, and the remainder is 1.5e-08.