We're dividing 151791 by 39 
We want to figure out the number of times 151791 can be divided by 39.

Moving on to step 1:
39 can be fit into 1 0 times, resulting in a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Take the next digit (5) from the dividend and append it to 1, then repeat: 15 / 39

Going ahead to step 2:
15 divided by 39 is 0 with a remainder of 15.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 15, we end up with 15.
Take the next digit (1) from the dividend and append it to 15, then repeat: 151 / 39

Moving on to step 3:
The number 39 fits into 151 3 times, leaving a remainder of 34.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtract 117 from 151 to get 34.
Include the next digit (7) from the dividend after 34, then repeat: 347 / 39

On to step 4:
The number 39 fits into 347 8 times, leaving a remainder of 35.
The next digit of our result is 8. 
Result so far: 38.0
Deduct 312 from 347 and we're left with 35.
Take the next digit (9) from the dividend and append it to 35, then repeat: 359 / 39

Let's proceed to step 5:
39 can be fit into 359 9 times, resulting in a remainder of 8.
The next digit of our result is 9. 
Result so far: 389.0
If we take 351 away from 359, we end up with 8.
Fetch the next digit (1) from the dividend, attach it to 8 and continue: 81 / 39

Let's proceed to step 6:
39 can be fit into 81 2 times, resulting in a remainder of 3.
Record the quotient 2 as the next digit in the result. 
Result so far: 3892.0
The remainder is 3 after subtracting 78 from 81.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 7:
If we divide 30 by 39, we get 0 and a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 3892.0
Deduct 0 from 30 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 8:
300 divided by 39 is 7 with a remainder of 27.
Put 7 as the next digit of the answer. 
Result so far: 3892.07
The remainder is 27 after subtracting 273 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Moving on to step 9:
270 divided by 39 is 6 with a remainder of 36.
Put 6 as the next digit of the answer. 
Result so far: 3892.076
Deduct 234 from 270 and we're left with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

On to step 10:
If we divide 360 by 39, we get 9 and a remainder of 9.
Use 9 as the next digit of our solution. 
Result so far: 3892.0769
If we take 351 away from 360, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Advancing to step 11:
The number 39 fits into 90 2 times, leaving a remainder of 12.
Record the quotient 2 as the next digit in the result. 
Result so far: 3892.07692
If we subtract 78 from 90, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 12:
39 goes into 120 3 times with a remainder of 3.
Write down 3 as next digit of the result. 
Result so far: 3892.076923
Subtract 117 from 120 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 13:
30 divided by 39 is 0 with a remainder of 30.
The next digit of our result is 0. 
Result so far: 3892.076923
The remainder is 30 after subtracting 0 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 14:
If we divide 300 by 39, we get 7 and a remainder of 27.
Write down 7 as next digit of the result. 
Result so far: 3892.07692307
The remainder is 27 after subtracting 273 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

After the division, we end up with 3892.07692307 and a remainder of 2.7e-08.