Let's divide 553387 by 86
We want to figure out the number of times 553387 can be divided by 86.

Step 1:
86 can be fit into 5 0 times, resulting in a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Grab the next digit (5) from the dividend, add it to 5, then carry on: 55 / 86

On to step 2:
86 can be fit into 55 0 times, resulting in a remainder of 55.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 55 and we're left with 55.
Include the next digit (3) from the dividend after 55, then repeat: 553 / 86

Step 3:
86 can be fit into 553 6 times, resulting in a remainder of 37.
The next digit of our result is 6. 
Result so far: 6.0
Subtract 516 from 553 to get 37.
Take the next digit (3) from the dividend and append it to 37, then repeat: 373 / 86

On to step 4:
The number 86 fits into 373 4 times, leaving a remainder of 29.
The next digit of our result is 4. 
Result so far: 64.0
If we take 344 away from 373, we end up with 29.
Bring next digit (8) of the dividend behind the 29 and repeat the process: 298 / 86

Moving on to step 5:
86 goes into 298 3 times with a remainder of 40.
The next digit of our result is 3. 
Result so far: 643.0
Deduct 258 from 298 and we're left with 40.
Append the next digit (7) from the dividend to 40 and continue with: 407 / 86

Step 6:
86 goes into 407 4 times with a remainder of 63.
The next digit of our result is 4. 
Result so far: 6434.0
If we take 344 away from 407, we end up with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Step 7:
The number 86 fits into 630 7 times, leaving a remainder of 28.
The number 7 becomes the next digit in our result. 
Result so far: 6434.7
If we subtract 602 from 630, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Let's proceed to step 8:
86 can be fit into 280 3 times, resulting in a remainder of 22.
Write down 3 as next digit of the result. 
Result so far: 6434.73
Deduct 258 from 280 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Going ahead to step 9:
The number 86 fits into 220 2 times, leaving a remainder of 48.
The number 2 becomes the next digit in our result. 
Result so far: 6434.732
If we take 172 away from 220, we end up with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 10:
The number 86 fits into 480 5 times, leaving a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 6434.7325
Subtracting 430 from 480 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 11:
If we divide 500 by 86, we get 5 and a remainder of 70.
Use 5 as the next digit of our solution. 
Result so far: 6434.73255
Subtracting 430 from 500 leaves us with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

The final outcome is 6434.73255, with a leftover of 7e-05.