We're dividing 451284 by 39 
We want to figure out the number of times 451284 can be divided by 39.

Advancing to step 1:
The number 39 fits into 4 0 times, leaving a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Bring next digit (5) of the dividend behind the 4 and repeat the process: 45 / 39

Going ahead to step 2:
The number 39 fits into 45 1 times, leaving a remainder of 6.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 39 from 45, we get 6.
Fetch the next digit (1) from the dividend, attach it to 6 and continue: 61 / 39

Moving on to step 3:
The number 39 fits into 61 1 times, leaving a remainder of 22.
Record the quotient 1 as the next digit in the result. 
Result so far: 11.0
Subtracting 39 from 61 leaves us with 22.
Grab the next digit (2) from the dividend, add it to 22, then carry on: 222 / 39

On to step 4:
39 can be fit into 222 5 times, resulting in a remainder of 27.
Use 5 as the next digit of our solution. 
Result so far: 115.0
If we take 195 away from 222, we end up with 27.
Append the next digit (8) from the dividend to 27 and continue with: 278 / 39

Moving on to step 5:
278 divided by 39 is 7 with a remainder of 5.
The next digit of our result is 7. 
Result so far: 1157.0
If we subtract 273 from 278, we get 5.
Bring next digit (4) of the dividend behind the 5 and repeat the process: 54 / 39

Advancing to step 6:
39 can be fit into 54 1 times, resulting in a remainder of 15.
Write down 1 as next digit of the result. 
Result so far: 11571.0
If we take 39 away from 54, we end up 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.

Advancing to step 7:
The number 39 fits into 150 3 times, leaving a remainder of 33.
The number 3 becomes the next digit in our result. 
Result so far: 11571.3
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.

On to step 8:
39 goes into 330 8 times with a remainder of 18.
The next digit of our result is 8. 
Result so far: 11571.38
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.

On to step 9:
The number 39 fits into 180 4 times, leaving a remainder of 24.
The next digit of our result is 4. 
Result so far: 11571.384
Deduct 156 from 180 and we're left 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.

On to step 10:
The number 39 fits into 240 6 times, leaving a remainder of 6.
Write down 6 as next digit of the result. 
Result so far: 11571.3846
Subtracting 234 from 240 leaves us 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.

Going ahead to step 11:
The number 39 fits into 60 1 times, leaving a remainder of 21.
The number 1 becomes the next digit in our result. 
Result so far: 11571.38461
Deduct 39 from 60 and we're left with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Advancing to step 12:
If we divide 210 by 39, we get 5 and a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 11571.384615
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.

Step 13:
When dividing 150 by 39, we get 3 with a remainder of 33.
The number 3 becomes the next digit in our result. 
Result so far: 11571.3846153
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.

Moving on to step 14:
If we divide 330 by 39, we get 8 and a remainder of 18.
Record the quotient 8 as the next digit in the result. 
Result so far: 11571.38461538
Deduct 312 from 330 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Our division results in 11571.38461538 with a remaining 1.8e-08.