We look at the division of 84238636 by 451 
Let's see how many times 451 fits into 84238636.

Advancing to step 1:
8 divided by 451 is 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Include the next digit (4) from the dividend after 8, then repeat: 84 / 451

Going ahead to step 2:
If we divide 84 by 451, we get 0 and a remainder of 84.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 84 leaves us with 84.
Bring next digit (2) of the dividend behind the 84 and repeat the process: 842 / 451

Advancing to step 3:
842 divided by 451 is 1 with a remainder of 391.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 451 from 842 leaves us with 391.
Grab the next digit (3) from the dividend, add it to 391, then carry on: 3913 / 451

On to step 4:
451 goes into 3913 8 times with a remainder of 305.
Write down 8 as next digit of the result. 
Result so far: 18.0
Subtracting 3608 from 3913 leaves us with 305.
Fetch the next digit (8) from the dividend, attach it to 305 and continue: 3058 / 451

Let's proceed to step 5:
3058 divided by 451 is 6 with a remainder of 352.
Use 6 as the next digit of our solution. 
Result so far: 186.0
If we subtract 2706 from 3058, we get 352.
Bring next digit (6) of the dividend behind the 352 and repeat the process: 3526 / 451

Step 6:
3526 divided by 451 is 7 with a remainder of 369.
The next digit of our result is 7. 
Result so far: 1867.0
If we take 3157 away from 3526, we end up with 369.
Append the next digit (3) from the dividend to 369 and continue with: 3693 / 451

Step 7:
3693 divided by 451 is 8 with a remainder of 85.
The number 8 becomes the next digit in our result. 
Result so far: 18678.0
If we subtract 3608 from 3693, we get 85.
Bring next digit (6) of the dividend behind the 85 and repeat the process: 856 / 451

Moving on to step 8:
If we divide 856 by 451, we get 1 and a remainder of 405.
Use 1 as the next digit of our solution. 
Result so far: 186781.0
If we take 451 away from 856, we end up with 405.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4050, and continue the process.

Let's proceed to step 9:
When dividing 4050 by 451, we get 8 with a remainder of 442.
The next digit of our result is 8. 
Result so far: 186781.8
Deduct 3608 from 4050 and we're left with 442.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4420, and continue the process.

On to step 10:
4420 divided by 451 is 9 with a remainder of 361.
The next digit of our result is 9. 
Result so far: 186781.89
Subtract 4059 from 4420 to get 361.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3610, and continue the process.

Let's proceed to step 11:
If we divide 3610 by 451, we get 8 and a remainder of 2.
The next digit of our result is 8. 
Result so far: 186781.898
The remainder is 2 after subtracting 3608 from 3610.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 12:
451 can be fit into 20 0 times, resulting in a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 186781.898
The remainder is 20 after subtracting 0 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 13:
451 goes into 200 0 times with a remainder of 200.
Record the quotient 0 as the next digit in the result. 
Result so far: 186781.898
Subtract 0 from 200 to get 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

After the division, we end up with 186781.898 and a remainder of 0.0002.