We're dividing 86364553 by 397 
Let's see how many times 397 fits into 86364553.

Advancing to step 1:
The number 397 fits into 8 0 times, leaving a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 397

Let's proceed to step 2:
86 divided by 397 is 0 with a remainder of 86.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 86 to get 86.
Grab the next digit (3) from the dividend, add it to 86, then carry on: 863 / 397

Advancing to step 3:
If we divide 863 by 397, we get 2 and a remainder of 69.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we subtract 794 from 863, we get 69.
Bring next digit (6) of the dividend behind the 69 and repeat the process: 696 / 397

Advancing to step 4:
397 goes into 696 1 times with a remainder of 299.
Record the quotient 1 as the next digit in the result. 
Result so far: 21.0
Subtracting 397 from 696 leaves us with 299.
Take the next digit (4) from the dividend and append it to 299, then repeat: 2994 / 397

Moving on to step 5:
The number 397 fits into 2994 7 times, leaving a remainder of 215.
The number 7 becomes the next digit in our result. 
Result so far: 217.0
If we subtract 2779 from 2994, we get 215.
Take the next digit (5) from the dividend and append it to 215, then repeat: 2155 / 397

Moving on to step 6:
If we divide 2155 by 397, we get 5 and a remainder of 170.
Use 5 as the next digit of our solution. 
Result so far: 2175.0
Subtracting 1985 from 2155 leaves us with 170.
Append the next digit (5) from the dividend to 170 and continue with: 1705 / 397

Step 7:
397 goes into 1705 4 times with a remainder of 117.
Record the quotient 4 as the next digit in the result. 
Result so far: 21754.0
Subtract 1588 from 1705 to get 117.
Bring next digit (3) of the dividend behind the 117 and repeat the process: 1173 / 397

Advancing to step 8:
397 can be fit into 1173 2 times, resulting in a remainder of 379.
Write down 2 as next digit of the result. 
Result so far: 217542.0
Subtract 794 from 1173 to get 379.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3790, and continue the process.

On to step 9:
397 can be fit into 3790 9 times, resulting in a remainder of 217.
Record the quotient 9 as the next digit in the result. 
Result so far: 217542.9
Subtract 3573 from 3790 to get 217.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2170, and continue the process.

Moving on to step 10:
When dividing 2170 by 397, we get 5 with a remainder of 185.
Record the quotient 5 as the next digit in the result. 
Result so far: 217542.95
The remainder is 185 after subtracting 1985 from 2170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1850, and continue the process.

Advancing to step 11:
If we divide 1850 by 397, we get 4 and a remainder of 262.
The next digit of our result is 4. 
Result so far: 217542.954
Subtracting 1588 from 1850 leaves us with 262.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2620, and continue the process.

On to step 12:
397 can be fit into 2620 6 times, resulting in a remainder of 238.
The next digit of our result is 6. 
Result so far: 217542.9546
The remainder is 238 after subtracting 2382 from 2620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

Going ahead to step 13:
The number 397 fits into 2380 5 times, leaving a remainder of 395.
Use 5 as the next digit of our solution. 
Result so far: 217542.95465
Subtract 1985 from 2380 to get 395.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3950, and continue the process.

Step 14:
The number 397 fits into 3950 9 times, leaving a remainder of 377.
Use 9 as the next digit of our solution. 
Result so far: 217542.954659
Subtract 3573 from 3950 to get 377.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3770, and continue the process.

Going ahead to step 15:
3770 divided by 397 is 9 with a remainder of 197.
Record the quotient 9 as the next digit in the result. 
Result so far: 217542.9546599
The remainder is 197 after subtracting 3573 from 3770.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1970, and continue the process.

After the division, we end up with 217542.9546599 and a remainder of 1.97e-06.