78907070 divided by 523 
Our goal is to divide 78907070 by 523.

Moving on to step 1:
7 divided by 523 is 0 with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Include the next digit (8) from the dividend after 7, then repeat: 78 / 523

Let's proceed to step 2:
523 can be fit into 78 0 times, resulting in a remainder of 78.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 78 and we're left with 78.
Take the next digit (9) from the dividend and append it to 78, then repeat: 789 / 523

Moving on to step 3:
523 goes into 789 1 times with a remainder of 266.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 523 from 789 and we're left with 266.
Append the next digit (0) from the dividend to 266 and continue with: 2660 / 523

Moving on to step 4:
523 goes into 2660 5 times with a remainder of 45.
Write down 5 as next digit of the result. 
Result so far: 15.0
The remainder is 45 after subtracting 2615 from 2660.
Bring next digit (7) of the dividend behind the 45 and repeat the process: 457 / 523

Moving on to step 5:
457 divided by 523 is 0 with a remainder of 457.
Write down 0 as next digit of the result. 
Result so far: 150.0
If we subtract 0 from 457, we get 457.
Bring next digit (0) of the dividend behind the 457 and repeat the process: 4570 / 523

On to step 6:
523 can be fit into 4570 8 times, resulting in a remainder of 386.
Record the quotient 8 as the next digit in the result. 
Result so far: 1508.0
If we subtract 4184 from 4570, we get 386.
Grab the next digit (7) from the dividend, add it to 386, then carry on: 3867 / 523

Advancing to step 7:
If we divide 3867 by 523, we get 7 and a remainder of 206.
The number 7 becomes the next digit in our result. 
Result so far: 15087.0
Deduct 3661 from 3867 and we're left with 206.
Grab the next digit (0) from the dividend, add it to 206, then carry on: 2060 / 523

On to step 8:
The number 523 fits into 2060 3 times, leaving a remainder of 491.
Write down 3 as next digit of the result. 
Result so far: 150873.0
The remainder is 491 after subtracting 1569 from 2060.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4910, and continue the process.

Step 9:
4910 divided by 523 is 9 with a remainder of 203.
Use 9 as the next digit of our solution. 
Result so far: 150873.9
If we take 4707 away from 4910, we end up with 203.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2030, and continue the process.

Advancing to step 10:
2030 divided by 523 is 3 with a remainder of 461.
The next digit of our result is 3. 
Result so far: 150873.93
If we take 1569 away from 2030, we end up with 461.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4610, and continue the process.

Step 11:
4610 divided by 523 is 8 with a remainder of 426.
Record the quotient 8 as the next digit in the result. 
Result so far: 150873.938
Deduct 4184 from 4610 and we're left with 426.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4260, and continue the process.

Advancing to step 12:
The number 523 fits into 4260 8 times, leaving a remainder of 76.
Use 8 as the next digit of our solution. 
Result so far: 150873.9388
Subtracting 4184 from 4260 leaves us with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

After the division, we end up with 150873.9388 and a remainder of 0.00076.