78512537 ÷ 612 
Our goal is to divide 78512537 by 612.

Going ahead to step 1:
If we divide 7 by 612, we get 0 and a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Include the next digit (8) from the dividend after 7, then repeat: 78 / 612

Let's proceed to step 2:
612 goes into 78 0 times with a remainder of 78.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 78, we get 78.
Append the next digit (5) from the dividend to 78 and continue with: 785 / 612

Step 3:
612 goes into 785 1 times with a remainder of 173.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 173 after subtracting 612 from 785.
Grab the next digit (1) from the dividend, add it to 173, then carry on: 1731 / 612

On to step 4:
The number 612 fits into 1731 2 times, leaving a remainder of 507.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
If we subtract 1224 from 1731, we get 507.
Take the next digit (2) from the dividend and append it to 507, then repeat: 5072 / 612

On to step 5:
5072 divided by 612 is 8 with a remainder of 176.
Record the quotient 8 as the next digit in the result. 
Result so far: 128.0
Deduct 4896 from 5072 and we're left with 176.
Fetch the next digit (5) from the dividend, attach it to 176 and continue: 1765 / 612

On to step 6:
The number 612 fits into 1765 2 times, leaving a remainder of 541.
The number 2 becomes the next digit in our result. 
Result so far: 1282.0
If we subtract 1224 from 1765, we get 541.
Include the next digit (3) from the dividend after 541, then repeat: 5413 / 612

On to step 7:
612 goes into 5413 8 times with a remainder of 517.
Record the quotient 8 as the next digit in the result. 
Result so far: 12828.0
The remainder is 517 after subtracting 4896 from 5413.
Bring next digit (7) of the dividend behind the 517 and repeat the process: 5177 / 612

Let's proceed to step 8:
612 goes into 5177 8 times with a remainder of 281.
Record the quotient 8 as the next digit in the result. 
Result so far: 128288.0
If we subtract 4896 from 5177, we get 281.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2810, and continue the process.

Let's proceed to step 9:
If we divide 2810 by 612, we get 4 and a remainder of 362.
The number 4 becomes the next digit in our result. 
Result so far: 128288.4
If we take 2448 away from 2810, we end up with 362.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3620, and continue the process.

Going ahead to step 10:
The number 612 fits into 3620 5 times, leaving a remainder of 560.
Write down 5 as next digit of the result. 
Result so far: 128288.45
If we subtract 3060 from 3620, we get 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

Step 11:
The number 612 fits into 5600 9 times, leaving a remainder of 92.
Put 9 as the next digit of the answer. 
Result so far: 128288.459
If we subtract 5508 from 5600, we get 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:
920 divided by 612 is 1 with a remainder of 308.
Use 1 as the next digit of our solution. 
Result so far: 128288.4591
Subtracting 612 from 920 leaves us with 308.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3080, and continue the process.

Let's proceed to step 13:
When dividing 3080 by 612, we get 5 with a remainder of 20.
Write down 5 as next digit of the result. 
Result so far: 128288.45915
If we take 3060 away from 3080, we end up 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.

On to step 14:
612 goes into 200 0 times with a remainder of 200.
Use 0 as the next digit of our solution. 
Result so far: 128288.45915
Subtracting 0 from 200 leaves us with 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 15:
When dividing 2000 by 612, we get 3 with a remainder of 164.
Record the quotient 3 as the next digit in the result. 
Result so far: 128288.4591503
The remainder is 164 after subtracting 1836 from 2000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1640, and continue the process.

Advancing to step 16:
The number 612 fits into 1640 2 times, leaving a remainder of 416.
Put 2 as the next digit of the answer. 
Result so far: 128288.45915032
If we take 1224 away from 1640, we end up with 416.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4160, and continue the process.

After the division, we end up with 128288.45915032 and a remainder of 4.16e-07.