We're dividing 86671543 by 801 
We want to figure out the number of times 86671543 can be divided by 801.

Step 1:
801 goes into 8 0 times with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 801

Going ahead to step 2:
The number 801 fits into 86 0 times, leaving a remainder of 86.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 86 after subtracting 0 from 86.
Include the next digit (6) from the dividend after 86, then repeat: 866 / 801

Step 3:
866 divided by 801 is 1 with a remainder of 65.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 801 from 866, we get 65.
Append the next digit (7) from the dividend to 65 and continue with: 657 / 801

Advancing to step 4:
801 can be fit into 657 0 times, resulting in a remainder of 657.
Write down 0 as next digit of the result. 
Result so far: 10.0
If we take 0 away from 657, we end up with 657.
Grab the next digit (1) from the dividend, add it to 657, then carry on: 6571 / 801

On to step 5:
When dividing 6571 by 801, we get 8 with a remainder of 163.
Use 8 as the next digit of our solution. 
Result so far: 108.0
Deduct 6408 from 6571 and we're left with 163.
Grab the next digit (5) from the dividend, add it to 163, then carry on: 1635 / 801

Step 6:
If we divide 1635 by 801, we get 2 and a remainder of 33.
Record the quotient 2 as the next digit in the result. 
Result so far: 1082.0
If we take 1602 away from 1635, we end up with 33.
Include the next digit (4) from the dividend after 33, then repeat: 334 / 801

Let's proceed to step 7:
When dividing 334 by 801, we get 0 with a remainder of 334.
The number 0 becomes the next digit in our result. 
Result so far: 10820.0
If we take 0 away from 334, we end up with 334.
Bring next digit (3) of the dividend behind the 334 and repeat the process: 3343 / 801

Let's proceed to step 8:
3343 divided by 801 is 4 with a remainder of 139.
Use 4 as the next digit of our solution. 
Result so far: 108204.0
The remainder is 139 after subtracting 3204 from 3343.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1390, and continue the process.

Advancing to step 9:
801 can be fit into 1390 1 times, resulting in a remainder of 589.
The next digit of our result is 1. 
Result so far: 108204.1
Subtract 801 from 1390 to get 589.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5890, and continue the process.

Going ahead to step 10:
801 can be fit into 5890 7 times, resulting in a remainder of 283.
Write down 7 as next digit of the result. 
Result so far: 108204.17
If we take 5607 away from 5890, we end up with 283.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2830, and continue the process.

Moving on to step 11:
2830 divided by 801 is 3 with a remainder of 427.
The next digit of our result is 3. 
Result so far: 108204.173
Subtracting 2403 from 2830 leaves us with 427.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4270, and continue the process.

Step 12:
801 goes into 4270 5 times with a remainder of 265.
Use 5 as the next digit of our solution. 
Result so far: 108204.1735
If we subtract 4005 from 4270, we get 265.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2650, and continue the process.

Let's proceed to step 13:
2650 divided by 801 is 3 with a remainder of 247.
Record the quotient 3 as the next digit in the result. 
Result so far: 108204.17353
Subtract 2403 from 2650 to get 247.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2470, and continue the process.

On to step 14:
801 goes into 2470 3 times with a remainder of 67.
Write down 3 as next digit of the result. 
Result so far: 108204.173533
Deduct 2403 from 2470 and we're left with 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

After the division, we end up with 108204.173533 and a remainder of 6.7e-06.