Let's divide 54910565 by 678
We're looking to find how many times 678 goes into 54910565.

On to step 1:
If we divide 5 by 678, we get 0 and a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Append the next digit (4) from the dividend to 5 and continue with: 54 / 678

Going ahead to step 2:
678 can be fit into 54 0 times, resulting in a remainder of 54.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 54 and we're left with 54.
Take the next digit (9) from the dividend and append it to 54, then repeat: 549 / 678

On to step 3:
678 can be fit into 549 0 times, resulting in a remainder of 549.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 549, we get 549.
Take the next digit (1) from the dividend and append it to 549, then repeat: 5491 / 678

Advancing to step 4:
678 goes into 5491 8 times with a remainder of 67.
The next digit of our result is 8. 
Result so far: 8.0
If we take 5424 away from 5491, we end up with 67.
Include the next digit (0) from the dividend after 67, then repeat: 670 / 678

Step 5:
When dividing 670 by 678, we get 0 with a remainder of 670.
Record the quotient 0 as the next digit in the result. 
Result so far: 80.0
Subtracting 0 from 670 leaves us with 670.
Bring next digit (5) of the dividend behind the 670 and repeat the process: 6705 / 678

On to step 6:
If we divide 6705 by 678, we get 9 and a remainder of 603.
The next digit of our result is 9. 
Result so far: 809.0
Deduct 6102 from 6705 and we're left with 603.
Take the next digit (6) from the dividend and append it to 603, then repeat: 6036 / 678

Advancing to step 7:
If we divide 6036 by 678, we get 8 and a remainder of 612.
The number 8 becomes the next digit in our result. 
Result so far: 8098.0
Subtract 5424 from 6036 to get 612.
Fetch the next digit (5) from the dividend, attach it to 612 and continue: 6125 / 678

Moving on to step 8:
678 goes into 6125 9 times with a remainder of 23.
The number 9 becomes the next digit in our result. 
Result so far: 80989.0
If we take 6102 away from 6125, we end up with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Going ahead to step 9:
678 can be fit into 230 0 times, resulting in a remainder of 230.
Write down 0 as next digit of the result. 
Result so far: 80989.0
If we subtract 0 from 230, we get 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Advancing to step 10:
If we divide 2300 by 678, we get 3 and a remainder of 266.
The number 3 becomes the next digit in our result. 
Result so far: 80989.03
The remainder is 266 after subtracting 2034 from 2300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2660, and continue the process.

Advancing to step 11:
678 goes into 2660 3 times with a remainder of 626.
Record the quotient 3 as the next digit in the result. 
Result so far: 80989.033
Subtract 2034 from 2660 to get 626.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6260, and continue the process.

The final outcome is 80989.033, with a leftover of 0.0626.