87133942 ÷ 431 
Our goal is to divide 87133942 by 431.

Step 1:
If we divide 8 by 431, we get 0 and 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.
Include the next digit (7) from the dividend after 8, then repeat: 87 / 431

Going ahead to step 2:
431 can be fit into 87 0 times, resulting in a remainder of 87.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 87 and we're left with 87.
Fetch the next digit (1) from the dividend, attach it to 87 and continue: 871 / 431

Step 3:
The number 431 fits into 871 2 times, leaving a remainder of 9.
Put 2 as the next digit of the answer. 
Result so far: 2.0
The remainder is 9 after subtracting 862 from 871.
Grab the next digit (3) from the dividend, add it to 9, then carry on: 93 / 431

Let's proceed to step 4:
If we divide 93 by 431, we get 0 and a remainder of 93.
Write down 0 as next digit of the result. 
Result so far: 20.0
Deduct 0 from 93 and we're left with 93.
Take the next digit (3) from the dividend and append it to 93, then repeat: 933 / 431

Going ahead to step 5:
933 divided by 431 is 2 with a remainder of 71.
The number 2 becomes the next digit in our result. 
Result so far: 202.0
The remainder is 71 after subtracting 862 from 933.
Bring next digit (9) of the dividend behind the 71 and repeat the process: 719 / 431

On to step 6:
719 divided by 431 is 1 with a remainder of 288.
Write down 1 as next digit of the result. 
Result so far: 2021.0
Subtract 431 from 719 to get 288.
Include the next digit (4) from the dividend after 288, then repeat: 2884 / 431

Moving on to step 7:
If we divide 2884 by 431, we get 6 and a remainder of 298.
The next digit of our result is 6. 
Result so far: 20216.0
Subtracting 2586 from 2884 leaves us with 298.
Append the next digit (2) from the dividend to 298 and continue with: 2982 / 431

Going ahead to step 8:
431 can be fit into 2982 6 times, resulting in a remainder of 396.
The number 6 becomes the next digit in our result. 
Result so far: 202166.0
Deduct 2586 from 2982 and we're left with 396.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3960, and continue the process.

Advancing to step 9:
If we divide 3960 by 431, we get 9 and a remainder of 81.
Record the quotient 9 as the next digit in the result. 
Result so far: 202166.9
Subtract 3879 from 3960 to get 81.
Since there are no more digits in the dividend, we add a zero to the remainder making it 810, and continue the process.

Let's proceed to step 10:
431 can be fit into 810 1 times, resulting in a remainder of 379.
Put 1 as the next digit of the answer. 
Result so far: 202166.91
Deduct 431 from 810 and we're left with 379.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3790, and continue the process.

Step 11:
431 goes into 3790 8 times with a remainder of 342.
Record the quotient 8 as the next digit in the result. 
Result so far: 202166.918
Subtracting 3448 from 3790 leaves us with 342.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3420, and continue the process.

On to step 12:
3420 divided by 431 is 7 with a remainder of 403.
Write down 7 as next digit of the result. 
Result so far: 202166.9187
Subtract 3017 from 3420 to get 403.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4030, and continue the process.

Step 13:
When dividing 4030 by 431, we get 9 with a remainder of 151.
Write down 9 as next digit of the result. 
Result so far: 202166.91879
Subtract 3879 from 4030 to get 151.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1510, and continue the process.

Advancing to step 14:
If we divide 1510 by 431, we get 3 and a remainder of 217.
Put 3 as the next digit of the answer. 
Result so far: 202166.918793
If we subtract 1293 from 1510, we 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.

Let's proceed to step 15:
431 goes into 2170 5 times with a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 202166.9187935
Subtracting 2155 from 2170 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 16:
431 goes into 150 0 times with a remainder of 150.
Write down 0 as next digit of the result. 
Result so far: 202166.9187935
If we take 0 away from 150, we end up with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

The final outcome is 202166.9187935, with a leftover of 1.5e-07.