78078512 divided by 603 
We want to figure out the number of times 78078512 can be divided by 603.

On to step 1:
7 divided by 603 is 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Include the next digit (8) from the dividend after 7, then repeat: 78 / 603

Let's proceed to step 2:
78 divided by 603 is 0 with a remainder of 78.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 78, we get 78.
Grab the next digit (0) from the dividend, add it to 78, then carry on: 780 / 603

Going ahead to step 3:
When dividing 780 by 603, we get 1 with a remainder of 177.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 177 after subtracting 603 from 780.
Grab the next digit (7) from the dividend, add it to 177, then carry on: 1777 / 603

Step 4:
603 goes into 1777 2 times with a remainder of 571.
Use 2 as the next digit of our solution. 
Result so far: 12.0
Subtracting 1206 from 1777 leaves us with 571.
Take the next digit (8) from the dividend and append it to 571, then repeat: 5718 / 603

Moving on to step 5:
603 can be fit into 5718 9 times, resulting in a remainder of 291.
Record the quotient 9 as the next digit in the result. 
Result so far: 129.0
Subtracting 5427 from 5718 leaves us with 291.
Bring next digit (5) of the dividend behind the 291 and repeat the process: 2915 / 603

Let's proceed to step 6:
The number 603 fits into 2915 4 times, leaving a remainder of 503.
Use 4 as the next digit of our solution. 
Result so far: 1294.0
If we subtract 2412 from 2915, we get 503.
Grab the next digit (1) from the dividend, add it to 503, then carry on: 5031 / 603

Advancing to step 7:
If we divide 5031 by 603, we get 8 and a remainder of 207.
The next digit of our result is 8. 
Result so far: 12948.0
The remainder is 207 after subtracting 4824 from 5031.
Grab the next digit (2) from the dividend, add it to 207, then carry on: 2072 / 603

Let's proceed to step 8:
603 goes into 2072 3 times with a remainder of 263.
The number 3 becomes the next digit in our result. 
Result so far: 129483.0
Deduct 1809 from 2072 and we're left with 263.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2630, and continue the process.

Advancing to step 9:
2630 divided by 603 is 4 with a remainder of 218.
Record the quotient 4 as the next digit in the result. 
Result so far: 129483.4
Subtracting 2412 from 2630 leaves us with 218.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2180, and continue the process.

Moving on to step 10:
When dividing 2180 by 603, we get 3 with a remainder of 371.
Write down 3 as next digit of the result. 
Result so far: 129483.43
The remainder is 371 after subtracting 1809 from 2180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3710, and continue the process.

On to step 11:
When dividing 3710 by 603, we get 6 with a remainder of 92.
Put 6 as the next digit of the answer. 
Result so far: 129483.436
Deduct 3618 from 3710 and we're left with 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Moving on to step 12:
603 goes into 920 1 times with a remainder of 317.
Put 1 as the next digit of the answer. 
Result so far: 129483.4361
Subtract 603 from 920 to get 317.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3170, and continue the process.

Going ahead to step 13:
If we divide 3170 by 603, we get 5 and a remainder of 155.
Use 5 as the next digit of our solution. 
Result so far: 129483.43615
Subtracting 3015 from 3170 leaves us with 155.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1550, and continue the process.

Let's proceed to step 14:
1550 divided by 603 is 2 with a remainder of 344.
Write down 2 as next digit of the result. 
Result so far: 129483.436152
Subtract 1206 from 1550 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.

Going ahead to step 15:
603 goes into 3440 5 times with a remainder of 425.
The next digit of our result is 5. 
Result so far: 129483.4361525
If we take 3015 away from 3440, we end up with 425.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4250, and continue the process.

Let's proceed to step 16:
603 can be fit into 4250 7 times, resulting in a remainder of 29.
Use 7 as the next digit of our solution. 
Result so far: 129483.43615257
Subtract 4221 from 4250 to get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

The final outcome is 129483.43615257, with a leftover of 2.9e-08.