78418505 ÷ 634 
Our goal is to divide 78418505 by 634.

Advancing to step 1:
When dividing 7 by 634, we get 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Append the next digit (8) from the dividend to 7 and continue with: 78 / 634

On to step 2:
634 goes into 78 0 times with a remainder of 78.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 78 leaves us with 78.
Bring next digit (4) of the dividend behind the 78 and repeat the process: 784 / 634

Let's proceed to step 3:
634 can be fit into 784 1 times, resulting in a remainder of 150.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 634 from 784, we get 150.
Append the next digit (1) from the dividend to 150 and continue with: 1501 / 634

Let's proceed to step 4:
If we divide 1501 by 634, we get 2 and a remainder of 233.
Put 2 as the next digit of the answer. 
Result so far: 12.0
The remainder is 233 after subtracting 1268 from 1501.
Grab the next digit (8) from the dividend, add it to 233, then carry on: 2338 / 634

Advancing to step 5:
2338 divided by 634 is 3 with a remainder of 436.
Write down 3 as next digit of the result. 
Result so far: 123.0
The remainder is 436 after subtracting 1902 from 2338.
Include the next digit (5) from the dividend after 436, then repeat: 4365 / 634

Let's proceed to step 6:
634 goes into 4365 6 times with a remainder of 561.
The next digit of our result is 6. 
Result so far: 1236.0
If we subtract 3804 from 4365, we get 561.
Bring next digit (0) of the dividend behind the 561 and repeat the process: 5610 / 634

Going ahead to step 7:
When dividing 5610 by 634, we get 8 with a remainder of 538.
Write down 8 as next digit of the result. 
Result so far: 12368.0
Deduct 5072 from 5610 and we're left with 538.
Take the next digit (5) from the dividend and append it to 538, then repeat: 5385 / 634

On to step 8:
The number 634 fits into 5385 8 times, leaving a remainder of 313.
The next digit of our result is 8. 
Result so far: 123688.0
If we subtract 5072 from 5385, we get 313.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3130, and continue the process.

Advancing to step 9:
The number 634 fits into 3130 4 times, leaving a remainder of 594.
Write down 4 as next digit of the result. 
Result so far: 123688.4
If we subtract 2536 from 3130, we get 594.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5940, and continue the process.

Moving on to step 10:
When dividing 5940 by 634, we get 9 with a remainder of 234.
Write down 9 as next digit of the result. 
Result so far: 123688.49
Subtracting 5706 from 5940 leaves us with 234.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2340, and continue the process.

Moving on to step 11:
If we divide 2340 by 634, we get 3 and a remainder of 438.
The next digit of our result is 3. 
Result so far: 123688.493
The remainder is 438 after subtracting 1902 from 2340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4380, and continue the process.

Advancing to step 12:
If we divide 4380 by 634, we get 6 and a remainder of 576.
Record the quotient 6 as the next digit in the result. 
Result so far: 123688.4936
If we take 3804 away from 4380, we end up with 576.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5760, and continue the process.

Advancing to step 13:
634 can be fit into 5760 9 times, resulting in a remainder of 54.
The number 9 becomes the next digit in our result. 
Result so far: 123688.49369
The remainder is 54 after subtracting 5706 from 5760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Going ahead to step 14:
The number 634 fits into 540 0 times, leaving a remainder of 540.
Put 0 as the next digit of the answer. 
Result so far: 123688.49369
If we take 0 away from 540, we end up with 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

On to step 15:
634 goes into 5400 8 times with a remainder of 328.
Write down 8 as next digit of the result. 
Result so far: 123688.4936908
Subtracting 5072 from 5400 leaves us with 328.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3280, and continue the process.

Advancing to step 16:
634 goes into 3280 5 times with a remainder of 110.
Record the quotient 5 as the next digit in the result. 
Result so far: 123688.49369085
Deduct 3170 from 3280 and we're left with 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

In conclusion, the division gives 123688.49369085 with a balance of 1.1e-07.