We look at the division of 612789 by 51 
We want to figure out the number of times 612789 can be divided by 51.

Let's proceed to step 1:
51 can be fit into 6 0 times, resulting in a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Take the next digit (1) from the dividend and append it to 6, then repeat: 61 / 51

Let's proceed to step 2:
When dividing 61 by 51, we get 1 with a remainder of 10.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 51 from 61 to get 10.
Take the next digit (2) from the dividend and append it to 10, then repeat: 102 / 51

On to step 3:
102 divided by 51 is 2 with a remainder of 0.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
Deduct 102 from 102 and we're left with 0.
Bring next digit (7) of the dividend behind the 0 and repeat the process: 7 / 51

Advancing to step 4:
51 goes into 7 0 times with a remainder of 7.
The next digit of our result is 0. 
Result so far: 120.0
Subtract 0 from 7 to get 7.
Take the next digit (8) from the dividend and append it to 7, then repeat: 78 / 51

Step 5:
When dividing 78 by 51, we get 1 with a remainder of 27.
The next digit of our result is 1. 
Result so far: 1201.0
If we take 51 away from 78, we end up with 27.
Fetch the next digit (9) from the dividend, attach it to 27 and continue: 279 / 51

Step 6:
The number 51 fits into 279 5 times, leaving a remainder of 24.
Record the quotient 5 as the next digit in the result. 
Result so far: 12015.0
If we take 255 away from 279, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 7:
The number 51 fits into 240 4 times, leaving a remainder of 36.
Use 4 as the next digit of our solution. 
Result so far: 12015.4
Subtract 204 from 240 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Let's proceed to step 8:
360 divided by 51 is 7 with a remainder of 3.
The next digit of our result is 7. 
Result so far: 12015.47
If we take 357 away from 360, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 9:
When dividing 30 by 51, we get 0 with a remainder of 30.
The next digit of our result is 0. 
Result so far: 12015.47
If we subtract 0 from 30, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 10:
51 goes into 300 5 times with a remainder of 45.
Use 5 as the next digit of our solution. 
Result so far: 12015.4705
Subtracting 255 from 300 leaves us with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Let's proceed to step 11:
The number 51 fits into 450 8 times, leaving a remainder of 42.
Write down 8 as next digit of the result. 
Result so far: 12015.47058
If we take 408 away from 450, we end up with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Moving on to step 12:
51 goes into 420 8 times with a remainder of 12.
Use 8 as the next digit of our solution. 
Result so far: 12015.470588
If we take 408 away from 420, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Our division results in 12015.470588 with a remaining 1.2e-06.