Let's divide 78221309 by 408
We want to divide 78221309 by 408.

Let's proceed to step 1:
The number 408 fits into 7 0 times, leaving a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Fetch the next digit (8) from the dividend, attach it to 7 and continue: 78 / 408

Going ahead to step 2:
78 divided by 408 is 0 with a remainder of 78.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 78, we get 78.
Take the next digit (2) from the dividend and append it to 78, then repeat: 782 / 408

On to step 3:
408 goes into 782 1 times with a remainder of 374.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 408 from 782 and we're left with 374.
Bring next digit (2) of the dividend behind the 374 and repeat the process: 3742 / 408

Moving on to step 4:
3742 divided by 408 is 9 with a remainder of 70.
Record the quotient 9 as the next digit in the result. 
Result so far: 19.0
Deduct 3672 from 3742 and we're left with 70.
Grab the next digit (1) from the dividend, add it to 70, then carry on: 701 / 408

Moving on to step 5:
408 goes into 701 1 times with a remainder of 293.
Record the quotient 1 as the next digit in the result. 
Result so far: 191.0
Deduct 408 from 701 and we're left with 293.
Append the next digit (3) from the dividend to 293 and continue with: 2933 / 408

Going ahead to step 6:
The number 408 fits into 2933 7 times, leaving a remainder of 77.
Put 7 as the next digit of the answer. 
Result so far: 1917.0
Subtracting 2856 from 2933 leaves us with 77.
Grab the next digit (0) from the dividend, add it to 77, then carry on: 770 / 408

Let's proceed to step 7:
The number 408 fits into 770 1 times, leaving a remainder of 362.
Write down 1 as next digit of the result. 
Result so far: 19171.0
Subtracting 408 from 770 leaves us with 362.
Bring next digit (9) of the dividend behind the 362 and repeat the process: 3629 / 408

Going ahead to step 8:
408 can be fit into 3629 8 times, resulting in a remainder of 365.
The number 8 becomes the next digit in our result. 
Result so far: 191718.0
Subtract 3264 from 3629 to get 365.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3650, and continue the process.

On to step 9:
408 goes into 3650 8 times with a remainder of 386.
Write down 8 as next digit of the result. 
Result so far: 191718.8
If we take 3264 away from 3650, we end up with 386.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3860, and continue the process.

Let's proceed to step 10:
408 can be fit into 3860 9 times, resulting in a remainder of 188.
Write down 9 as next digit of the result. 
Result so far: 191718.89
The remainder is 188 after subtracting 3672 from 3860.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

Going ahead to step 11:
If we divide 1880 by 408, we get 4 and a remainder of 248.
Write down 4 as next digit of the result. 
Result so far: 191718.894
The remainder is 248 after subtracting 1632 from 1880.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

On to step 12:
408 goes into 2480 6 times with a remainder of 32.
Use 6 as the next digit of our solution. 
Result so far: 191718.8946
Subtract 2448 from 2480 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

On to step 13:
The number 408 fits into 320 0 times, leaving a remainder of 320.
Put 0 as the next digit of the answer. 
Result so far: 191718.8946
If we subtract 0 from 320, we get 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

On to step 14:
408 can be fit into 3200 7 times, resulting in a remainder of 344.
Record the quotient 7 as the next digit in the result. 
Result so far: 191718.894607
If we take 2856 away from 3200, we end up with 344.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3440, and continue the process.

On to step 15:
When dividing 3440 by 408, we get 8 with a remainder of 176.
The next digit of our result is 8. 
Result so far: 191718.8946078
Subtract 3264 from 3440 to get 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

Advancing to step 16:
408 goes into 1760 4 times with a remainder of 128.
Record the quotient 4 as the next digit in the result. 
Result so far: 191718.89460784
If we subtract 1632 from 1760, we get 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

The quotient of the division is 191718.89460784, and the remainder is 1.28e-07.