We divide 21655464 by 78
We want to figure out the number of times 21655464 can be divided by 78.

Going ahead to step 1:
78 goes into 2 0 times with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 78

Let's proceed to step 2:
The number 78 fits into 21 0 times, leaving a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 21 after subtracting 0 from 21.
Include the next digit (6) from the dividend after 21, then repeat: 216 / 78

On to step 3:
When dividing 216 by 78, we get 2 with a remainder of 60.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we subtract 156 from 216, we get 60.
Grab the next digit (5) from the dividend, add it to 60, then carry on: 605 / 78

Step 4:
If we divide 605 by 78, we get 7 and a remainder of 59.
The number 7 becomes the next digit in our result. 
Result so far: 27.0
Deduct 546 from 605 and we're left with 59.
Bring next digit (5) of the dividend behind the 59 and repeat the process: 595 / 78

Moving on to step 5:
If we divide 595 by 78, we get 7 and a remainder of 49.
Write down 7 as next digit of the result. 
Result so far: 277.0
The remainder is 49 after subtracting 546 from 595.
Include the next digit (4) from the dividend after 49, then repeat: 494 / 78

Moving on to step 6:
78 goes into 494 6 times with a remainder of 26.
Put 6 as the next digit of the answer. 
Result so far: 2776.0
The remainder is 26 after subtracting 468 from 494.
Take the next digit (6) from the dividend and append it to 26, then repeat: 266 / 78

On to step 7:
78 goes into 266 3 times with a remainder of 32.
Record the quotient 3 as the next digit in the result. 
Result so far: 27763.0
Subtracting 234 from 266 leaves us with 32.
Bring next digit (4) of the dividend behind the 32 and repeat the process: 324 / 78

On to step 8:
If we divide 324 by 78, we get 4 and a remainder of 12.
Use 4 as the next digit of our solution. 
Result so far: 277634.0
If we take 312 away from 324, 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.

Advancing to step 9:
78 can be fit into 120 1 times, resulting in a remainder of 42.
The next digit of our result is 1. 
Result so far: 277634.1
Subtracting 78 from 120 leaves us 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.

On to step 10:
The number 78 fits into 420 5 times, leaving a remainder of 30.
The next digit of our result is 5. 
Result so far: 277634.15
The remainder is 30 after subtracting 390 from 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 11:
300 divided by 78 is 3 with a remainder of 66.
Put 3 as the next digit of the answer. 
Result so far: 277634.153
The remainder is 66 after subtracting 234 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Going ahead to step 12:
78 can be fit into 660 8 times, resulting in a remainder of 36.
Record the quotient 8 as the next digit in the result. 
Result so far: 277634.1538
Subtracting 624 from 660 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Step 13:
78 can be fit into 360 4 times, resulting in a remainder of 48.
Use 4 as the next digit of our solution. 
Result so far: 277634.15384
If we subtract 312 from 360, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 14:
78 can be fit into 480 6 times, resulting in a remainder of 12.
The next digit of our result is 6. 
Result so far: 277634.153846
If we take 468 away from 480, 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.

Going ahead to step 15:
When dividing 120 by 78, we get 1 with a remainder of 42.
Write down 1 as next digit of the result. 
Result so far: 277634.1538461
If we subtract 78 from 120, we get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Moving on to step 16:
If we divide 420 by 78, we get 5 and a remainder of 30.
Record the quotient 5 as the next digit in the result. 
Result so far: 277634.15384615
If we subtract 390 from 420, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

After the division, we end up with 277634.15384615 and a remainder of 3e-08.