87126451 divided by 669 
Our goal is to divide 87126451 by 669.

Let's proceed to step 1:
The number 669 fits into 8 0 times, leaving a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Append the next digit (7) from the dividend to 8 and continue with: 87 / 669

Moving on to step 2:
The number 669 fits into 87 0 times, leaving a remainder of 87.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 87 after subtracting 0 from 87.
Include the next digit (1) from the dividend after 87, then repeat: 871 / 669

Step 3:
669 can be fit into 871 1 times, resulting in a remainder of 202.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 669 from 871, we get 202.
Append the next digit (2) from the dividend to 202 and continue with: 2022 / 669

On to step 4:
The number 669 fits into 2022 3 times, leaving a remainder of 15.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
If we subtract 2007 from 2022, we get 15.
Bring next digit (6) of the dividend behind the 15 and repeat the process: 156 / 669

Let's proceed to step 5:
If we divide 156 by 669, we get 0 and a remainder of 156.
Put 0 as the next digit of the answer. 
Result so far: 130.0
Subtracting 0 from 156 leaves us with 156.
Take the next digit (4) from the dividend and append it to 156, then repeat: 1564 / 669

Moving on to step 6:
The number 669 fits into 1564 2 times, leaving a remainder of 226.
Use 2 as the next digit of our solution. 
Result so far: 1302.0
Subtracting 1338 from 1564 leaves us with 226.
Append the next digit (5) from the dividend to 226 and continue with: 2265 / 669

Advancing to step 7:
669 can be fit into 2265 3 times, resulting in a remainder of 258.
The number 3 becomes the next digit in our result. 
Result so far: 13023.0
Subtract 2007 from 2265 to get 258.
Include the next digit (1) from the dividend after 258, then repeat: 2581 / 669

Let's proceed to step 8:
669 goes into 2581 3 times with a remainder of 574.
Put 3 as the next digit of the answer. 
Result so far: 130233.0
If we subtract 2007 from 2581, we get 574.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5740, and continue the process.

Going ahead to step 9:
The number 669 fits into 5740 8 times, leaving a remainder of 388.
The next digit of our result is 8. 
Result so far: 130233.8
Subtract 5352 from 5740 to get 388.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3880, and continue the process.

On to step 10:
If we divide 3880 by 669, we get 5 and a remainder of 535.
Write down 5 as next digit of the result. 
Result so far: 130233.85
If we subtract 3345 from 3880, we get 535.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5350, and continue the process.

Step 11:
669 goes into 5350 7 times with a remainder of 667.
The number 7 becomes the next digit in our result. 
Result so far: 130233.857
Subtracting 4683 from 5350 leaves us with 667.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6670, and continue the process.

Let's proceed to step 12:
669 can be fit into 6670 9 times, resulting in a remainder of 649.
Record the quotient 9 as the next digit in the result. 
Result so far: 130233.8579
The remainder is 649 after subtracting 6021 from 6670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6490, and continue the process.

Moving on to step 13:
669 goes into 6490 9 times with a remainder of 469.
The next digit of our result is 9. 
Result so far: 130233.85799
Subtract 6021 from 6490 to get 469.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4690, and continue the process.

The final result is 130233.85799 with a remainder of 0.000469.