Let's divide 99869868 by 138
Our goal is to divide 99869868 by 138.

Going ahead to step 1:
138 goes into 9 0 times with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Grab the next digit (9) from the dividend, add it to 9, then carry on: 99 / 138

Step 2:
The number 138 fits into 99 0 times, leaving a remainder of 99.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 99 to get 99.
Bring next digit (8) of the dividend behind the 99 and repeat the process: 998 / 138

Advancing to step 3:
138 can be fit into 998 7 times, resulting in a remainder of 32.
Use 7 as the next digit of our solution. 
Result so far: 7.0
Subtracting 966 from 998 leaves us with 32.
Bring next digit (6) of the dividend behind the 32 and repeat the process: 326 / 138

On to step 4:
138 can be fit into 326 2 times, resulting in a remainder of 50.
Record the quotient 2 as the next digit in the result. 
Result so far: 72.0
If we take 276 away from 326, we end up with 50.
Bring next digit (9) of the dividend behind the 50 and repeat the process: 509 / 138

Going ahead to step 5:
138 can be fit into 509 3 times, resulting in a remainder of 95.
The next digit of our result is 3. 
Result so far: 723.0
Subtract 414 from 509 to get 95.
Fetch the next digit (8) from the dividend, attach it to 95 and continue: 958 / 138

Going ahead to step 6:
138 can be fit into 958 6 times, resulting in a remainder of 130.
The next digit of our result is 6. 
Result so far: 7236.0
Subtract 828 from 958 to get 130.
Append the next digit (6) from the dividend to 130 and continue with: 1306 / 138

Let's proceed to step 7:
138 goes into 1306 9 times with a remainder of 64.
Put 9 as the next digit of the answer. 
Result so far: 72369.0
The remainder is 64 after subtracting 1242 from 1306.
Bring next digit (8) of the dividend behind the 64 and repeat the process: 648 / 138

Advancing to step 8:
648 divided by 138 is 4 with a remainder of 96.
Record the quotient 4 as the next digit in the result. 
Result so far: 723694.0
Deduct 552 from 648 and we're left with 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Step 9:
The number 138 fits into 960 6 times, leaving a remainder of 132.
Put 6 as the next digit of the answer. 
Result so far: 723694.6
If we subtract 828 from 960, we get 132.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

On to step 10:
138 goes into 1320 9 times with a remainder of 78.
The number 9 becomes the next digit in our result. 
Result so far: 723694.69
Subtract 1242 from 1320 to get 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Moving on to step 11:
138 can be fit into 780 5 times, resulting in a remainder of 90.
Record the quotient 5 as the next digit in the result. 
Result so far: 723694.695
Subtracting 690 from 780 leaves us with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Advancing to step 12:
The number 138 fits into 900 6 times, leaving a remainder of 72.
The number 6 becomes the next digit in our result. 
Result so far: 723694.6956
Subtracting 828 from 900 leaves us with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Moving on to step 13:
720 divided by 138 is 5 with a remainder of 30.
Record the quotient 5 as the next digit in the result. 
Result so far: 723694.69565
Deduct 690 from 720 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 14:
300 divided by 138 is 2 with a remainder of 24.
Use 2 as the next digit of our solution. 
Result so far: 723694.695652
If we subtract 276 from 300, 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.

Let's proceed to step 15:
138 can be fit into 240 1 times, resulting in a remainder of 102.
Record the quotient 1 as the next digit in the result. 
Result so far: 723694.6956521
The remainder is 102 after subtracting 138 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

On to step 16:
138 goes into 1020 7 times with a remainder of 54.
Write down 7 as next digit of the result. 
Result so far: 723694.69565217
If we take 966 away from 1020, we end up with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

After the division, we end up with 723694.69565217 and a remainder of 5.4e-08.