99156165 ÷ 408 
We want to divide 99156165 by 408.

Moving on to step 1:
9 divided by 408 is 0 with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Append the next digit (9) from the dividend to 9 and continue with: 99 / 408

Let's proceed to step 2:
408 can be fit into 99 0 times, resulting in a remainder of 99.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 99 and we're left with 99.
Fetch the next digit (1) from the dividend, attach it to 99 and continue: 991 / 408

On to step 3:
408 can be fit into 991 2 times, resulting in a remainder of 175.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we take 816 away from 991, we end up with 175.
Bring next digit (5) of the dividend behind the 175 and repeat the process: 1755 / 408

Advancing to step 4:
If we divide 1755 by 408, we get 4 and a remainder of 123.
Record the quotient 4 as the next digit in the result. 
Result so far: 24.0
Deduct 1632 from 1755 and we're left with 123.
Append the next digit (6) from the dividend to 123 and continue with: 1236 / 408

Let's proceed to step 5:
408 can be fit into 1236 3 times, resulting in a remainder of 12.
Put 3 as the next digit of the answer. 
Result so far: 243.0
The remainder is 12 after subtracting 1224 from 1236.
Bring next digit (1) of the dividend behind the 12 and repeat the process: 121 / 408

Advancing to step 6:
408 can be fit into 121 0 times, resulting in a remainder of 121.
The number 0 becomes the next digit in our result. 
Result so far: 2430.0
Subtract 0 from 121 to get 121.
Include the next digit (6) from the dividend after 121, then repeat: 1216 / 408

Step 7:
1216 divided by 408 is 2 with a remainder of 400.
Record the quotient 2 as the next digit in the result. 
Result so far: 24302.0
Deduct 816 from 1216 and we're left with 400.
Append the next digit (5) from the dividend to 400 and continue with: 4005 / 408

Let's proceed to step 8:
408 can be fit into 4005 9 times, resulting in a remainder of 333.
Use 9 as the next digit of our solution. 
Result so far: 243029.0
Subtracting 3672 from 4005 leaves us with 333.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3330, and continue the process.

Let's proceed to step 9:
If we divide 3330 by 408, we get 8 and a remainder of 66.
Use 8 as the next digit of our solution. 
Result so far: 243029.8
Subtract 3264 from 3330 to get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Step 10:
408 can be fit into 660 1 times, resulting in a remainder of 252.
The next digit of our result is 1. 
Result so far: 243029.81
Deduct 408 from 660 and we're left with 252.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2520, and continue the process.

On to step 11:
2520 divided by 408 is 6 with a remainder of 72.
Use 6 as the next digit of our solution. 
Result so far: 243029.816
Subtract 2448 from 2520 to get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Advancing to step 12:
408 goes into 720 1 times with a remainder of 312.
Use 1 as the next digit of our solution. 
Result so far: 243029.8161
Subtracting 408 from 720 leaves us with 312.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3120, and continue the process.

Moving on to step 13:
The number 408 fits into 3120 7 times, leaving a remainder of 264.
Write down 7 as next digit of the result. 
Result so far: 243029.81617
If we subtract 2856 from 3120, we get 264.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2640, and continue the process.

On to step 14:
If we divide 2640 by 408, we get 6 and a remainder of 192.
Use 6 as the next digit of our solution. 
Result so far: 243029.816176
The remainder is 192 after subtracting 2448 from 2640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

Moving on to step 15:
The number 408 fits into 1920 4 times, leaving a remainder of 288.
Use 4 as the next digit of our solution. 
Result so far: 243029.8161764
Subtracting 1632 from 1920 leaves us with 288.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2880, and continue the process.

On to step 16:
408 can be fit into 2880 7 times, resulting in a remainder of 24.
Use 7 as the next digit of our solution. 
Result so far: 243029.81617647
If we subtract 2856 from 2880, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

The final outcome is 243029.81617647, with a leftover of 2.4e-08.