We look at the division of 84234531 by 451 
Our goal is to divide 84234531 by 451.

Advancing to step 1:
451 can be fit into 8 0 times, resulting in a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Append the next digit (4) from the dividend to 8 and continue with: 84 / 451

Advancing to step 2:
The number 451 fits into 84 0 times, leaving a remainder of 84.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 84 leaves us with 84.
Append the next digit (2) from the dividend to 84 and continue with: 842 / 451

Advancing to step 3:
842 divided by 451 is 1 with a remainder of 391.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 391 after subtracting 451 from 842.
Take the next digit (3) from the dividend and append it to 391, then repeat: 3913 / 451

On to step 4:
The number 451 fits into 3913 8 times, leaving a remainder of 305.
The next digit of our result is 8. 
Result so far: 18.0
If we take 3608 away from 3913, we end up with 305.
Take the next digit (4) from the dividend and append it to 305, then repeat: 3054 / 451

Let's proceed to step 5:
If we divide 3054 by 451, we get 6 and a remainder of 348.
Record the quotient 6 as the next digit in the result. 
Result so far: 186.0
If we subtract 2706 from 3054, we get 348.
Take the next digit (5) from the dividend and append it to 348, then repeat: 3485 / 451

Advancing to step 6:
If we divide 3485 by 451, we get 7 and a remainder of 328.
Put 7 as the next digit of the answer. 
Result so far: 1867.0
Deduct 3157 from 3485 and we're left with 328.
Bring next digit (3) of the dividend behind the 328 and repeat the process: 3283 / 451

Going ahead to step 7:
451 goes into 3283 7 times with a remainder of 126.
The number 7 becomes the next digit in our result. 
Result so far: 18677.0
The remainder is 126 after subtracting 3157 from 3283.
Take the next digit (1) from the dividend and append it to 126, then repeat: 1261 / 451

Moving on to step 8:
451 goes into 1261 2 times with a remainder of 359.
The next digit of our result is 2. 
Result so far: 186772.0
Deduct 902 from 1261 and we're left with 359.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3590, and continue the process.

On to step 9:
When dividing 3590 by 451, we get 7 with a remainder of 433.
Record the quotient 7 as the next digit in the result. 
Result so far: 186772.7
Deduct 3157 from 3590 and we're left with 433.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4330, and continue the process.

Let's proceed to step 10:
If we divide 4330 by 451, we get 9 and a remainder of 271.
Put 9 as the next digit of the answer. 
Result so far: 186772.79
Subtracting 4059 from 4330 leaves us with 271.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2710, and continue the process.

Step 11:
When dividing 2710 by 451, we get 6 with a remainder of 4.
The next digit of our result is 6. 
Result so far: 186772.796
If we take 2706 away from 2710, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 12:
451 goes into 40 0 times with a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 186772.796
Deduct 0 from 40 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 13:
If we divide 400 by 451, we get 0 and a remainder of 400.
The next digit of our result is 0. 
Result so far: 186772.796
If we subtract 0 from 400, we get 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

In conclusion, the division gives 186772.796 with a balance of 0.0004.