78210192 divided by 280 
We want to divide 78210192 by 280.

Moving on to step 1:
280 can be fit into 7 0 times, resulting in a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Append the next digit (8) from the dividend to 7 and continue with: 78 / 280

Let's proceed to step 2:
The number 280 fits into 78 0 times, leaving a remainder of 78.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 78 to get 78.
Include the next digit (2) from the dividend after 78, then repeat: 782 / 280

Let's proceed to step 3:
When dividing 782 by 280, we get 2 with a remainder of 222.
Use 2 as the next digit of our solution. 
Result so far: 2.0
The remainder is 222 after subtracting 560 from 782.
Include the next digit (1) from the dividend after 222, then repeat: 2221 / 280

Step 4:
If we divide 2221 by 280, we get 7 and a remainder of 261.
The number 7 becomes the next digit in our result. 
Result so far: 27.0
Subtracting 1960 from 2221 leaves us with 261.
Append the next digit (0) from the dividend to 261 and continue with: 2610 / 280

Step 5:
280 can be fit into 2610 9 times, resulting in a remainder of 90.
Record the quotient 9 as the next digit in the result. 
Result so far: 279.0
Deduct 2520 from 2610 and we're left with 90.
Bring next digit (1) of the dividend behind the 90 and repeat the process: 901 / 280

Moving on to step 6:
If we divide 901 by 280, we get 3 and a remainder of 61.
Record the quotient 3 as the next digit in the result. 
Result so far: 2793.0
Deduct 840 from 901 and we're left with 61.
Grab the next digit (9) from the dividend, add it to 61, then carry on: 619 / 280

Step 7:
280 goes into 619 2 times with a remainder of 59.
Write down 2 as next digit of the result. 
Result so far: 27932.0
Subtracting 560 from 619 leaves us with 59.
Bring next digit (2) of the dividend behind the 59 and repeat the process: 592 / 280

Let's proceed to step 8:
592 divided by 280 is 2 with a remainder of 32.
The next digit of our result is 2. 
Result so far: 279322.0
The remainder is 32 after subtracting 560 from 592.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 9:
When dividing 320 by 280, we get 1 with a remainder of 40.
Put 1 as the next digit of the answer. 
Result so far: 279322.1
Deduct 280 from 320 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 10:
280 can be fit into 400 1 times, resulting in a remainder of 120.
Record the quotient 1 as the next digit in the result. 
Result so far: 279322.11
If we subtract 280 from 400, we get 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

The final result is 279322.11 with a remainder of 0.12.