We're dividing 21169160 by 689 
We want to figure out the number of times 21169160 can be divided by 689.

Moving on to step 1:
If we divide 2 by 689, we get 0 and a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 689

Moving on to step 2:
21 divided by 689 is 0 with a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 21 leaves us with 21.
Fetch the next digit (1) from the dividend, attach it to 21 and continue: 211 / 689

Advancing to step 3:
If we divide 211 by 689, we get 0 and a remainder of 211.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 211 leaves us with 211.
Fetch the next digit (6) from the dividend, attach it to 211 and continue: 2116 / 689

Going ahead to step 4:
The number 689 fits into 2116 3 times, leaving a remainder of 49.
Write down 3 as next digit of the result. 
Result so far: 3.0
The remainder is 49 after subtracting 2067 from 2116.
Append the next digit (9) from the dividend to 49 and continue with: 499 / 689

Going ahead to step 5:
If we divide 499 by 689, we get 0 and a remainder of 499.
Record the quotient 0 as the next digit in the result. 
Result so far: 30.0
Deduct 0 from 499 and we're left with 499.
Fetch the next digit (1) from the dividend, attach it to 499 and continue: 4991 / 689

Moving on to step 6:
When dividing 4991 by 689, we get 7 with a remainder of 168.
Write down 7 as next digit of the result. 
Result so far: 307.0
If we take 4823 away from 4991, we end up with 168.
Bring next digit (6) of the dividend behind the 168 and repeat the process: 1686 / 689

Step 7:
When dividing 1686 by 689, we get 2 with a remainder of 308.
Put 2 as the next digit of the answer. 
Result so far: 3072.0
If we subtract 1378 from 1686, we get 308.
Append the next digit (0) from the dividend to 308 and continue with: 3080 / 689

Step 8:
3080 divided by 689 is 4 with a remainder of 324.
Write down 4 as next digit of the result. 
Result so far: 30724.0
If we take 2756 away from 3080, we end up with 324.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

Moving on to step 9:
3240 divided by 689 is 4 with a remainder of 484.
The next digit of our result is 4. 
Result so far: 30724.4
The remainder is 484 after subtracting 2756 from 3240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4840, and continue the process.

Going ahead to step 10:
When dividing 4840 by 689, we get 7 with a remainder of 17.
Put 7 as the next digit of the answer. 
Result so far: 30724.47
If we take 4823 away from 4840, 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 11:
The number 689 fits into 170 0 times, leaving a remainder of 170.
Put 0 as the next digit of the answer. 
Result so far: 30724.47
The remainder is 170 after subtracting 0 from 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Advancing to step 12:
When dividing 1700 by 689, we get 2 with a remainder of 322.
The next digit of our result is 2. 
Result so far: 30724.4702
If we subtract 1378 from 1700, we get 322.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3220, and continue the process.

Step 13:
If we divide 3220 by 689, we get 4 and a remainder of 464.
Write down 4 as next digit of the result. 
Result so far: 30724.47024
Subtracting 2756 from 3220 leaves us with 464.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4640, and continue the process.

On to step 14:
The number 689 fits into 4640 6 times, leaving a remainder of 506.
Record the quotient 6 as the next digit in the result. 
Result so far: 30724.470246
The remainder is 506 after subtracting 4134 from 4640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5060, and continue the process.

On to step 15:
689 goes into 5060 7 times with a remainder of 237.
Use 7 as the next digit of our solution. 
Result so far: 30724.4702467
If we take 4823 away from 5060, we end up with 237.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2370, and continue the process.

Let's proceed to step 16:
The number 689 fits into 2370 3 times, leaving a remainder of 303.
Record the quotient 3 as the next digit in the result. 
Result so far: 30724.47024673
Subtracting 2067 from 2370 leaves us with 303.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3030, and continue the process.

The final result is 30724.47024673 with a remainder of 3.03e-07.