438452 divided by 86 
We want to figure out the number of times 438452 can be divided by 86.

Advancing to step 1:
If we divide 4 by 86, we get 0 and a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Take the next digit (3) from the dividend and append it to 4, then repeat: 43 / 86

Step 2:
The number 86 fits into 43 0 times, leaving a remainder of 43.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 43 leaves us with 43.
Include the next digit (8) from the dividend after 43, then repeat: 438 / 86

Advancing to step 3:
If we divide 438 by 86, we get 5 and a remainder of 8.
The next digit of our result is 5. 
Result so far: 5.0
Subtracting 430 from 438 leaves us with 8.
Include the next digit (4) from the dividend after 8, then repeat: 84 / 86

Step 4:
If we divide 84 by 86, we get 0 and a remainder of 84.
The number 0 becomes the next digit in our result. 
Result so far: 50.0
If we subtract 0 from 84, we get 84.
Take the next digit (5) from the dividend and append it to 84, then repeat: 845 / 86

On to step 5:
86 goes into 845 9 times with a remainder of 71.
Use 9 as the next digit of our solution. 
Result so far: 509.0
Subtract 774 from 845 to get 71.
Bring next digit (2) of the dividend behind the 71 and repeat the process: 712 / 86

On to step 6:
86 goes into 712 8 times with a remainder of 24.
The next digit of our result is 8. 
Result so far: 5098.0
If we take 688 away from 712, we end up 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.

Going ahead to step 7:
240 divided by 86 is 2 with a remainder of 68.
Put 2 as the next digit of the answer. 
Result so far: 5098.2
Subtracting 172 from 240 leaves us with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Moving on to step 8:
The number 86 fits into 680 7 times, leaving a remainder of 78.
Record the quotient 7 as the next digit in the result. 
Result so far: 5098.27
Subtract 602 from 680 to get 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Advancing to step 9:
When dividing 780 by 86, we get 9 with a remainder of 6.
Use 9 as the next digit of our solution. 
Result so far: 5098.279
Deduct 774 from 780 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 10:
When dividing 60 by 86, we get 0 with a remainder of 60.
The number 0 becomes the next digit in our result. 
Result so far: 5098.279
Subtract 0 from 60 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 11:
The number 86 fits into 600 6 times, leaving a remainder of 84.
Use 6 as the next digit of our solution. 
Result so far: 5098.27906
The remainder is 84 after subtracting 516 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

On to step 12:
If we divide 840 by 86, we get 9 and a remainder of 66.
Write down 9 as next digit of the result. 
Result so far: 5098.279069
Deduct 774 from 840 and we're left with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Step 13:
When dividing 660 by 86, we get 7 with a remainder of 58.
Record the quotient 7 as the next digit in the result. 
Result so far: 5098.2790697
Deduct 602 from 660 and we're left with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Advancing to step 14:
86 can be fit into 580 6 times, resulting in a remainder of 64.
Put 6 as the next digit of the answer. 
Result so far: 5098.27906976
The remainder is 64 after subtracting 516 from 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

After the division, we end up with 5098.27906976 and a remainder of 6.4e-08.