We're dividing 99413828 by 121 
We're looking to find how many times 121 goes into 99413828.

Step 1:
The number 121 fits into 9 0 times, leaving a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Bring next digit (9) of the dividend behind the 9 and repeat the process: 99 / 121

Step 2:
If we divide 99 by 121, we get 0 and a remainder of 99.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 99 and we're left with 99.
Grab the next digit (4) from the dividend, add it to 99, then carry on: 994 / 121

Step 3:
121 goes into 994 8 times with a remainder of 26.
Put 8 as the next digit of the answer. 
Result so far: 8.0
Deduct 968 from 994 and we're left with 26.
Fetch the next digit (1) from the dividend, attach it to 26 and continue: 261 / 121

On to step 4:
261 divided by 121 is 2 with a remainder of 19.
Record the quotient 2 as the next digit in the result. 
Result so far: 82.0
Subtract 242 from 261 to get 19.
Take the next digit (3) from the dividend and append it to 19, then repeat: 193 / 121

Going ahead to step 5:
The number 121 fits into 193 1 times, leaving a remainder of 72.
The next digit of our result is 1. 
Result so far: 821.0
The remainder is 72 after subtracting 121 from 193.
Fetch the next digit (8) from the dividend, attach it to 72 and continue: 728 / 121

Moving on to step 6:
728 divided by 121 is 6 with a remainder of 2.
The number 6 becomes the next digit in our result. 
Result so far: 8216.0
If we take 726 away from 728, we end up with 2.
Append the next digit (2) from the dividend to 2 and continue with: 22 / 121

Advancing to step 7:
The number 121 fits into 22 0 times, leaving a remainder of 22.
The number 0 becomes the next digit in our result. 
Result so far: 82160.0
Subtract 0 from 22 to get 22.
Append the next digit (8) from the dividend to 22 and continue with: 228 / 121

Let's proceed to step 8:
121 can be fit into 228 1 times, resulting in a remainder of 107.
Record the quotient 1 as the next digit in the result. 
Result so far: 821601.0
If we subtract 121 from 228, we get 107.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1070, and continue the process.

Going ahead to step 9:
121 goes into 1070 8 times with a remainder of 102.
The number 8 becomes the next digit in our result. 
Result so far: 821601.8
Deduct 968 from 1070 and we're left with 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

Moving on to step 10:
1020 divided by 121 is 8 with a remainder of 52.
The next digit of our result is 8. 
Result so far: 821601.88
The remainder is 52 after subtracting 968 from 1020.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

The final outcome is 821601.88, with a leftover of 0.052.