We look at the division of 84550859 by 451 
We're looking to find how many times 451 goes into 84550859.

Going ahead to step 1:
8 divided by 451 is 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Append the next digit (4) from the dividend to 8 and continue with: 84 / 451

Step 2:
When dividing 84 by 451, we get 0 with a remainder of 84.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 84, we get 84.
Grab the next digit (5) from the dividend, add it to 84, then carry on: 845 / 451

Step 3:
451 goes into 845 1 times with a remainder of 394.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 451 from 845 to get 394.
Bring next digit (5) of the dividend behind the 394 and repeat the process: 3945 / 451

Let's proceed to step 4:
3945 divided by 451 is 8 with a remainder of 337.
Record the quotient 8 as the next digit in the result. 
Result so far: 18.0
Subtracting 3608 from 3945 leaves us with 337.
Take the next digit (0) from the dividend and append it to 337, then repeat: 3370 / 451

Step 5:
451 can be fit into 3370 7 times, resulting in a remainder of 213.
Put 7 as the next digit of the answer. 
Result so far: 187.0
Deduct 3157 from 3370 and we're left with 213.
Include the next digit (8) from the dividend after 213, then repeat: 2138 / 451

Let's proceed to step 6:
When dividing 2138 by 451, we get 4 with a remainder of 334.
Put 4 as the next digit of the answer. 
Result so far: 1874.0
If we subtract 1804 from 2138, we get 334.
Grab the next digit (5) from the dividend, add it to 334, then carry on: 3345 / 451

Let's proceed to step 7:
If we divide 3345 by 451, we get 7 and a remainder of 188.
Use 7 as the next digit of our solution. 
Result so far: 18747.0
If we subtract 3157 from 3345, we get 188.
Bring next digit (9) of the dividend behind the 188 and repeat the process: 1889 / 451

Going ahead to step 8:
451 can be fit into 1889 4 times, resulting in a remainder of 85.
The next digit of our result is 4. 
Result so far: 187474.0
Deduct 1804 from 1889 and we're left with 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Step 9:
850 divided by 451 is 1 with a remainder of 399.
The number 1 becomes the next digit in our result. 
Result so far: 187474.1
If we take 451 away from 850, we end up with 399.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3990, and continue the process.

Step 10:
451 goes into 3990 8 times with a remainder of 382.
Write down 8 as next digit of the result. 
Result so far: 187474.18
Deduct 3608 from 3990 and we're left with 382.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3820, and continue the process.

Going ahead to step 11:
When dividing 3820 by 451, we get 8 with a remainder of 212.
Record the quotient 8 as the next digit in the result. 
Result so far: 187474.188
If we take 3608 away from 3820, we end up with 212.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2120, and continue the process.

After the division, we end up with 187474.188 and a remainder of 0.0212.