We look at the division of 87161575 by 401 
Let's see how many times 401 fits into 87161575.

On to step 1:
401 goes into 8 0 times with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Bring next digit (7) of the dividend behind the 8 and repeat the process: 87 / 401

Step 2:
The number 401 fits into 87 0 times, leaving a remainder of 87.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 87 to get 87.
Include the next digit (1) from the dividend after 87, then repeat: 871 / 401

On to step 3:
401 goes into 871 2 times with a remainder of 69.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Deduct 802 from 871 and we're left with 69.
Take the next digit (6) from the dividend and append it to 69, then repeat: 696 / 401

Moving on to step 4:
401 goes into 696 1 times with a remainder of 295.
The next digit of our result is 1. 
Result so far: 21.0
The remainder is 295 after subtracting 401 from 696.
Append the next digit (1) from the dividend to 295 and continue with: 2951 / 401

Step 5:
If we divide 2951 by 401, we get 7 and a remainder of 144.
Write down 7 as next digit of the result. 
Result so far: 217.0
If we subtract 2807 from 2951, we get 144.
Bring next digit (5) of the dividend behind the 144 and repeat the process: 1445 / 401

Going ahead to step 6:
401 goes into 1445 3 times with a remainder of 242.
The number 3 becomes the next digit in our result. 
Result so far: 2173.0
If we subtract 1203 from 1445, we get 242.
Include the next digit (7) from the dividend after 242, then repeat: 2427 / 401

Moving on to step 7:
2427 divided by 401 is 6 with a remainder of 21.
The number 6 becomes the next digit in our result. 
Result so far: 21736.0
The remainder is 21 after subtracting 2406 from 2427.
Include the next digit (5) from the dividend after 21, then repeat: 215 / 401

Advancing to step 8:
215 divided by 401 is 0 with a remainder of 215.
Record the quotient 0 as the next digit in the result. 
Result so far: 217360.0
The remainder is 215 after subtracting 0 from 215.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2150, and continue the process.

Moving on to step 9:
When dividing 2150 by 401, we get 5 with a remainder of 145.
Write down 5 as next digit of the result. 
Result so far: 217360.5
Deduct 2005 from 2150 and we're left with 145.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1450, and continue the process.

Going ahead to step 10:
401 can be fit into 1450 3 times, resulting in a remainder of 247.
Record the quotient 3 as the next digit in the result. 
Result so far: 217360.53
Subtract 1203 from 1450 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 11:
When dividing 2470 by 401, we get 6 with a remainder of 64.
The next digit of our result is 6. 
Result so far: 217360.536
Deduct 2406 from 2470 and we're left with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

On to step 12:
640 divided by 401 is 1 with a remainder of 239.
Use 1 as the next digit of our solution. 
Result so far: 217360.5361
If we subtract 401 from 640, we get 239.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2390, and continue the process.

On to step 13:
401 goes into 2390 5 times with a remainder of 385.
Use 5 as the next digit of our solution. 
Result so far: 217360.53615
The remainder is 385 after subtracting 2005 from 2390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3850, and continue the process.

Going ahead to step 14:
If we divide 3850 by 401, we get 9 and a remainder of 241.
Write down 9 as next digit of the result. 
Result so far: 217360.536159
The remainder is 241 after subtracting 3609 from 3850.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2410, and continue the process.

Step 15:
If we divide 2410 by 401, we get 6 and a remainder of 4.
Put 6 as the next digit of the answer. 
Result so far: 217360.5361596
The remainder is 4 after subtracting 2406 from 2410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 16:
If we divide 40 by 401, we get 0 and a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 217360.5361596
If we take 0 away from 40, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Our division results in 217360.5361596 with a remaining 4e-08.