10721009 ÷ 214 
We want to figure out the number of times 10721009 can be divided by 214.

Step 1:
214 goes into 1 0 times with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Append the next digit (0) from the dividend to 1 and continue with: 10 / 214

Advancing to step 2:
10 divided by 214 is 0 with a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 10, we get 10.
Take the next digit (7) from the dividend and append it to 10, then repeat: 107 / 214

Moving on to step 3:
214 can be fit into 107 0 times, resulting in a remainder of 107.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 107 after subtracting 0 from 107.
Grab the next digit (2) from the dividend, add it to 107, then carry on: 1072 / 214

Moving on to step 4:
1072 divided by 214 is 5 with a remainder of 2.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Deduct 1070 from 1072 and we're left with 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 214

Let's proceed to step 5:
If we divide 21 by 214, we get 0 and a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 50.0
The remainder is 21 after subtracting 0 from 21.
Include the next digit (0) from the dividend after 21, then repeat: 210 / 214

Advancing to step 6:
If we divide 210 by 214, we get 0 and a remainder of 210.
Write down 0 as next digit of the result. 
Result so far: 500.0
Deduct 0 from 210 and we're left with 210.
Grab the next digit (0) from the dividend, add it to 210, then carry on: 2100 / 214

On to step 7:
214 goes into 2100 9 times with a remainder of 174.
Record the quotient 9 as the next digit in the result. 
Result so far: 5009.0
If we subtract 1926 from 2100, we get 174.
Take the next digit (9) from the dividend and append it to 174, then repeat: 1749 / 214

Moving on to step 8:
The number 214 fits into 1749 8 times, leaving a remainder of 37.
Put 8 as the next digit of the answer. 
Result so far: 50098.0
Deduct 1712 from 1749 and we're left with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Going ahead to step 9:
214 goes into 370 1 times with a remainder of 156.
Record the quotient 1 as the next digit in the result. 
Result so far: 50098.1
If we take 214 away from 370, we end up with 156.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1560, and continue the process.

Advancing to step 10:
1560 divided by 214 is 7 with a remainder of 62.
Use 7 as the next digit of our solution. 
Result so far: 50098.17
Subtract 1498 from 1560 to get 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Advancing to step 11:
The number 214 fits into 620 2 times, leaving a remainder of 192.
Record the quotient 2 as the next digit in the result. 
Result so far: 50098.172
Subtract 428 from 620 to get 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

Advancing to step 12:
214 goes into 1920 8 times with a remainder of 208.
The next digit of our result is 8. 
Result so far: 50098.1728
The remainder is 208 after subtracting 1712 from 1920.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

Let's proceed to step 13:
2080 divided by 214 is 9 with a remainder of 154.
The next digit of our result is 9. 
Result so far: 50098.17289
If we subtract 1926 from 2080, we get 154.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1540, and continue the process.

Step 14:
The number 214 fits into 1540 7 times, leaving a remainder of 42.
The next digit of our result is 7. 
Result so far: 50098.172897
If we take 1498 away from 1540, we end up with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Step 15:
The number 214 fits into 420 1 times, leaving a remainder of 206.
Put 1 as the next digit of the answer. 
Result so far: 50098.1728971
The remainder is 206 after subtracting 214 from 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2060, and continue the process.

On to step 16:
When dividing 2060 by 214, we get 9 with a remainder of 134.
Use 9 as the next digit of our solution. 
Result so far: 50098.17289719
Subtract 1926 from 2060 to get 134.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1340, and continue the process.

The final outcome is 50098.17289719, with a leftover of 1.34e-07.