149391 ÷ 39 
We're looking to find how many times 39 goes into 149391.

Step 1:
If we divide 1 by 39, we get 0 and a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Fetch the next digit (4) from the dividend, attach it to 1 and continue: 14 / 39

Step 2:
The number 39 fits into 14 0 times, leaving a remainder of 14.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 14, we end up with 14.
Include the next digit (9) from the dividend after 14, then repeat: 149 / 39

Moving on to step 3:
149 divided by 39 is 3 with a remainder of 32.
Use 3 as the next digit of our solution. 
Result so far: 3.0
If we take 117 away from 149, we end up with 32.
Grab the next digit (3) from the dividend, add it to 32, then carry on: 323 / 39

Advancing to step 4:
The number 39 fits into 323 8 times, leaving a remainder of 11.
The number 8 becomes the next digit in our result. 
Result so far: 38.0
Subtracting 312 from 323 leaves us with 11.
Grab the next digit (9) from the dividend, add it to 11, then carry on: 119 / 39

On to step 5:
39 can be fit into 119 3 times, resulting in a remainder of 2.
The next digit of our result is 3. 
Result so far: 383.0
If we subtract 117 from 119, we get 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 39

Moving on to step 6:
If we divide 21 by 39, we get 0 and a remainder of 21.
The number 0 becomes the next digit in our result. 
Result so far: 3830.0
Subtract 0 from 21 to get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

On to step 7:
If we divide 210 by 39, we get 5 and a remainder of 15.
The next digit of our result is 5. 
Result so far: 3830.5
Subtract 195 from 210 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 8:
39 goes into 150 3 times with a remainder of 33.
The number 3 becomes the next digit in our result. 
Result so far: 3830.53
Subtracting 117 from 150 leaves us with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Going ahead to step 9:
39 can be fit into 330 8 times, resulting in a remainder of 18.
The number 8 becomes the next digit in our result. 
Result so far: 3830.538
The remainder is 18 after subtracting 312 from 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Moving on to step 10:
39 can be fit into 180 4 times, resulting in a remainder of 24.
Record the quotient 4 as the next digit in the result. 
Result so far: 3830.5384
If we subtract 156 from 180, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 11:
When dividing 240 by 39, we get 6 with a remainder of 6.
Write down 6 as next digit of the result. 
Result so far: 3830.53846
Deduct 234 from 240 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 12:
39 can be fit into 60 1 times, resulting in a remainder of 21.
Put 1 as the next digit of the answer. 
Result so far: 3830.538461
The remainder is 21 after subtracting 39 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Step 13:
39 goes into 210 5 times with a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 3830.5384615
Deduct 195 from 210 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 14:
The number 39 fits into 150 3 times, leaving a remainder of 33.
Record the quotient 3 as the next digit in the result. 
Result so far: 3830.53846153
Subtracting 117 from 150 leaves us with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Our division results in 3830.53846153 with a remaining 3.3e-08.