99680207 ÷ 210 
We want to figure out the number of times 99680207 can be divided by 210.

Moving on to step 1:
When dividing 9 by 210, we get 0 with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Bring next digit (9) of the dividend behind the 9 and repeat the process: 99 / 210

On to step 2:
When dividing 99 by 210, we get 0 with a remainder of 99.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 99 leaves us with 99.
Bring next digit (6) of the dividend behind the 99 and repeat the process: 996 / 210

Step 3:
210 goes into 996 4 times with a remainder of 156.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
If we take 840 away from 996, we end up with 156.
Include the next digit (8) from the dividend after 156, then repeat: 1568 / 210

Going ahead to step 4:
When dividing 1568 by 210, we get 7 with a remainder of 98.
Record the quotient 7 as the next digit in the result. 
Result so far: 47.0
The remainder is 98 after subtracting 1470 from 1568.
Take the next digit (0) from the dividend and append it to 98, then repeat: 980 / 210

Going ahead to step 5:
210 goes into 980 4 times with a remainder of 140.
The number 4 becomes the next digit in our result. 
Result so far: 474.0
Deduct 840 from 980 and we're left with 140.
Append the next digit (2) from the dividend to 140 and continue with: 1402 / 210

Moving on to step 6:
210 can be fit into 1402 6 times, resulting in a remainder of 142.
The number 6 becomes the next digit in our result. 
Result so far: 4746.0
If we subtract 1260 from 1402, we get 142.
Fetch the next digit (0) from the dividend, attach it to 142 and continue: 1420 / 210

Step 7:
When dividing 1420 by 210, we get 6 with a remainder of 160.
Write down 6 as next digit of the result. 
Result so far: 47466.0
The remainder is 160 after subtracting 1260 from 1420.
Bring next digit (7) of the dividend behind the 160 and repeat the process: 1607 / 210

Step 8:
1607 divided by 210 is 7 with a remainder of 137.
Use 7 as the next digit of our solution. 
Result so far: 474667.0
The remainder is 137 after subtracting 1470 from 1607.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1370, and continue the process.

On to step 9:
The number 210 fits into 1370 6 times, leaving a remainder of 110.
The next digit of our result is 6. 
Result so far: 474667.6
If we take 1260 away from 1370, we end up with 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Going ahead to step 10:
The number 210 fits into 1100 5 times, leaving a remainder of 50.
The next digit of our result is 5. 
Result so far: 474667.65
If we subtract 1050 from 1100, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 11:
210 goes into 500 2 times with a remainder of 80.
Write down 2 as next digit of the result. 
Result so far: 474667.652
Subtract 420 from 500 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 12:
210 goes into 800 3 times with a remainder of 170.
Record the quotient 3 as the next digit in the result. 
Result so far: 474667.6523
If we take 630 away from 800, we end up with 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Step 13:
1700 divided by 210 is 8 with a remainder of 20.
The next digit of our result is 8. 
Result so far: 474667.65238
The remainder is 20 after subtracting 1680 from 1700.
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 14:
If we divide 200 by 210, we get 0 and a remainder of 200.
Record the quotient 0 as the next digit in the result. 
Result so far: 474667.65238
Subtract 0 from 200 to get 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Let's proceed to step 15:
210 can be fit into 2000 9 times, resulting in a remainder of 110.
Use 9 as the next digit of our solution. 
Result so far: 474667.6523809
If we take 1890 away from 2000, we end up with 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Advancing to step 16:
The number 210 fits into 1100 5 times, leaving a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 474667.65238095
If we take 1050 away from 1100, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

After the division, we end up with 474667.65238095 and a remainder of 5e-08.