87632438 ÷ 399 
We're looking to find how many times 399 goes into 87632438.

Moving on to step 1:
399 can be fit into 8 0 times, resulting in a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Include the next digit (7) from the dividend after 8, then repeat: 87 / 399

Going ahead to step 2:
399 goes into 87 0 times with a remainder of 87.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 87, we get 87.
Append the next digit (6) from the dividend to 87 and continue with: 876 / 399

Moving on to step 3:
The number 399 fits into 876 2 times, leaving a remainder of 78.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we take 798 away from 876, we end up with 78.
Grab the next digit (3) from the dividend, add it to 78, then carry on: 783 / 399

Let's proceed to step 4:
399 can be fit into 783 1 times, resulting in a remainder of 384.
Use 1 as the next digit of our solution. 
Result so far: 21.0
If we take 399 away from 783, we end up with 384.
Include the next digit (2) from the dividend after 384, then repeat: 3842 / 399

On to step 5:
If we divide 3842 by 399, we get 9 and a remainder of 251.
Write down 9 as next digit of the result. 
Result so far: 219.0
Subtracting 3591 from 3842 leaves us with 251.
Take the next digit (4) from the dividend and append it to 251, then repeat: 2514 / 399

Going ahead to step 6:
The number 399 fits into 2514 6 times, leaving a remainder of 120.
Record the quotient 6 as the next digit in the result. 
Result so far: 2196.0
If we take 2394 away from 2514, we end up with 120.
Append the next digit (3) from the dividend to 120 and continue with: 1203 / 399

Moving on to step 7:
1203 divided by 399 is 3 with a remainder of 6.
Write down 3 as next digit of the result. 
Result so far: 21963.0
Subtracting 1197 from 1203 leaves us with 6.
Grab the next digit (8) from the dividend, add it to 6, then carry on: 68 / 399

Going ahead to step 8:
The number 399 fits into 68 0 times, leaving a remainder of 68.
Put 0 as the next digit of the answer. 
Result so far: 219630.0
If we take 0 away from 68, we end up with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Step 9:
399 goes into 680 1 times with a remainder of 281.
The number 1 becomes the next digit in our result. 
Result so far: 219630.1
Subtract 399 from 680 to get 281.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2810, and continue the process.

Moving on to step 10:
2810 divided by 399 is 7 with a remainder of 17.
The next digit of our result is 7. 
Result so far: 219630.17
Subtracting 2793 from 2810 leaves us with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

On to step 11:
399 can be fit into 170 0 times, resulting in a remainder of 170.
Use 0 as the next digit of our solution. 
Result so far: 219630.17
The remainder is 170 after subtracting 0 from 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Let's proceed to step 12:
If we divide 1700 by 399, we get 4 and a remainder of 104.
The number 4 becomes the next digit in our result. 
Result so far: 219630.1704
Subtract 1596 from 1700 to get 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Advancing to step 13:
When dividing 1040 by 399, we get 2 with a remainder of 242.
Use 2 as the next digit of our solution. 
Result so far: 219630.17042
If we subtract 798 from 1040, we get 242.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2420, and continue the process.

Step 14:
2420 divided by 399 is 6 with a remainder of 26.
Use 6 as the next digit of our solution. 
Result so far: 219630.170426
Subtract 2394 from 2420 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Moving on to step 15:
260 divided by 399 is 0 with a remainder of 260.
Write down 0 as next digit of the result. 
Result so far: 219630.170426
Subtracting 0 from 260 leaves us with 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Going ahead to step 16:
399 goes into 2600 6 times with a remainder of 206.
The number 6 becomes the next digit in our result. 
Result so far: 219630.17042606
Subtracting 2394 from 2600 leaves us with 206.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2060, and continue the process.

The final result is 219630.17042606 with a remainder of 2.06e-07.