78984704 ÷ 455 
Let's see how many times 455 fits into 78984704.

Step 1:
7 divided by 455 is 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Include the next digit (8) from the dividend after 7, then repeat: 78 / 455

Advancing to step 2:
The number 455 fits into 78 0 times, leaving a remainder of 78.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 78, we get 78.
Grab the next digit (9) from the dividend, add it to 78, then carry on: 789 / 455

On to step 3:
455 can be fit into 789 1 times, resulting in a remainder of 334.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 455 from 789 to get 334.
Fetch the next digit (8) from the dividend, attach it to 334 and continue: 3348 / 455

Let's proceed to step 4:
When dividing 3348 by 455, we get 7 with a remainder of 163.
Record the quotient 7 as the next digit in the result. 
Result so far: 17.0
If we subtract 3185 from 3348, we get 163.
Append the next digit (4) from the dividend to 163 and continue with: 1634 / 455

Advancing to step 5:
If we divide 1634 by 455, we get 3 and a remainder of 269.
Use 3 as the next digit of our solution. 
Result so far: 173.0
Deduct 1365 from 1634 and we're left with 269.
Fetch the next digit (7) from the dividend, attach it to 269 and continue: 2697 / 455

Let's proceed to step 6:
When dividing 2697 by 455, we get 5 with a remainder of 422.
Use 5 as the next digit of our solution. 
Result so far: 1735.0
The remainder is 422 after subtracting 2275 from 2697.
Include the next digit (0) from the dividend after 422, then repeat: 4220 / 455

Let's proceed to step 7:
455 goes into 4220 9 times with a remainder of 125.
The next digit of our result is 9. 
Result so far: 17359.0
The remainder is 125 after subtracting 4095 from 4220.
Include the next digit (4) from the dividend after 125, then repeat: 1254 / 455

Advancing to step 8:
455 can be fit into 1254 2 times, resulting in a remainder of 344.
The next digit of our result is 2. 
Result so far: 173592.0
Subtract 910 from 1254 to get 344.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3440, and continue the process.

Advancing to step 9:
The number 455 fits into 3440 7 times, leaving a remainder of 255.
Put 7 as the next digit of the answer. 
Result so far: 173592.7
Deduct 3185 from 3440 and we're left with 255.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2550, and continue the process.

Advancing to step 10:
455 goes into 2550 5 times with a remainder of 275.
Put 5 as the next digit of the answer. 
Result so far: 173592.75
Deduct 2275 from 2550 and we're left with 275.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2750, and continue the process.

On to step 11:
455 can be fit into 2750 6 times, resulting in a remainder of 20.
The number 6 becomes the next digit in our result. 
Result so far: 173592.756
Deduct 2730 from 2750 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 12:
When dividing 200 by 455, we get 0 with a remainder of 200.
Write down 0 as next digit of the result. 
Result so far: 173592.756
If we subtract 0 from 200, we get 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Step 13:
The number 455 fits into 2000 4 times, leaving a remainder of 180.
Write down 4 as next digit of the result. 
Result so far: 173592.75604
If we subtract 1820 from 2000, we get 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Going ahead to step 14:
455 can be fit into 1800 3 times, resulting in a remainder of 435.
Write down 3 as next digit of the result. 
Result so far: 173592.756043
The remainder is 435 after subtracting 1365 from 1800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4350, and continue the process.

On to step 15:
455 can be fit into 4350 9 times, resulting in a remainder of 255.
Put 9 as the next digit of the answer. 
Result so far: 173592.7560439
The remainder is 255 after subtracting 4095 from 4350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2550, and continue the process.

Step 16:
If we divide 2550 by 455, we get 5 and a remainder of 275.
Put 5 as the next digit of the answer. 
Result so far: 173592.75604395
If we subtract 2275 from 2550, we get 275.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2750, and continue the process.

The final outcome is 173592.75604395, with a leftover of 2.75e-07.