21405680 divided by 709 
We're looking to find how many times 709 goes into 21405680.

Going ahead to step 1:
When dividing 2 by 709, we get 0 with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 709

Moving on to step 2:
If we divide 21 by 709, we get 0 and a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 21 and we're left with 21.
Include the next digit (4) from the dividend after 21, then repeat: 214 / 709

Let's proceed to step 3:
214 divided by 709 is 0 with a remainder of 214.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 214 to get 214.
Fetch the next digit (0) from the dividend, attach it to 214 and continue: 2140 / 709

Moving on to step 4:
When dividing 2140 by 709, we get 3 with a remainder of 13.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtracting 2127 from 2140 leaves us with 13.
Fetch the next digit (5) from the dividend, attach it to 13 and continue: 135 / 709

On to step 5:
When dividing 135 by 709, we get 0 with a remainder of 135.
Record the quotient 0 as the next digit in the result. 
Result so far: 30.0
Subtracting 0 from 135 leaves us with 135.
Grab the next digit (6) from the dividend, add it to 135, then carry on: 1356 / 709

Let's proceed to step 6:
709 can be fit into 1356 1 times, resulting in a remainder of 647.
Record the quotient 1 as the next digit in the result. 
Result so far: 301.0
Subtracting 709 from 1356 leaves us with 647.
Append the next digit (8) from the dividend to 647 and continue with: 6478 / 709

Advancing to step 7:
709 goes into 6478 9 times with a remainder of 97.
Write down 9 as next digit of the result. 
Result so far: 3019.0
Deduct 6381 from 6478 and we're left with 97.
Take the next digit (0) from the dividend and append it to 97, then repeat: 970 / 709

Let's proceed to step 8:
970 divided by 709 is 1 with a remainder of 261.
The number 1 becomes the next digit in our result. 
Result so far: 30191.0
Subtracting 709 from 970 leaves us with 261.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2610, and continue the process.

Moving on to step 9:
The number 709 fits into 2610 3 times, leaving a remainder of 483.
The number 3 becomes the next digit in our result. 
Result so far: 30191.3
If we take 2127 away from 2610, we end up with 483.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4830, and continue the process.

Going ahead to step 10:
4830 divided by 709 is 6 with a remainder of 576.
The number 6 becomes the next digit in our result. 
Result so far: 30191.36
Subtract 4254 from 4830 to get 576.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5760, and continue the process.

On to step 11:
When dividing 5760 by 709, we get 8 with a remainder of 88.
Record the quotient 8 as the next digit in the result. 
Result so far: 30191.368
Deduct 5672 from 5760 and we're left with 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

Going ahead to step 12:
If we divide 880 by 709, we get 1 and a remainder of 171.
Write down 1 as next digit of the result. 
Result so far: 30191.3681
If we take 709 away from 880, we end up with 171.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1710, and continue the process.

Going ahead to step 13:
The number 709 fits into 1710 2 times, leaving a remainder of 292.
Record the quotient 2 as the next digit in the result. 
Result so far: 30191.36812
The remainder is 292 after subtracting 1418 from 1710.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2920, and continue the process.

On to step 14:
When dividing 2920 by 709, we get 4 with a remainder of 84.
The number 4 becomes the next digit in our result. 
Result so far: 30191.368124
The remainder is 84 after subtracting 2836 from 2920.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Step 15:
The number 709 fits into 840 1 times, leaving a remainder of 131.
Put 1 as the next digit of the answer. 
Result so far: 30191.3681241
The remainder is 131 after subtracting 709 from 840.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1310, and continue the process.

On to step 16:
When dividing 1310 by 709, we get 1 with a remainder of 601.
Write down 1 as next digit of the result. 
Result so far: 30191.36812411
Subtracting 709 from 1310 leaves us with 601.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6010, and continue the process.

The final outcome is 30191.36812411, with a leftover of 6.01e-07.