We're dividing 99012799 by 641 
We want to figure out the number of times 99012799 can be divided by 641.

Going ahead to step 1:
The number 641 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.
Fetch the next digit (9) from the dividend, attach it to 9 and continue: 99 / 641

Advancing to step 2:
The number 641 fits into 99 0 times, leaving a remainder of 99.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 99, we end up with 99.
Bring next digit (0) of the dividend behind the 99 and repeat the process: 990 / 641

Going ahead to step 3:
990 divided by 641 is 1 with a remainder of 349.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 641 from 990, we get 349.
Append the next digit (1) from the dividend to 349 and continue with: 3491 / 641

On to step 4:
641 goes into 3491 5 times with a remainder of 286.
Record the quotient 5 as the next digit in the result. 
Result so far: 15.0
If we take 3205 away from 3491, we end up with 286.
Include the next digit (2) from the dividend after 286, then repeat: 2862 / 641

Let's proceed to step 5:
641 can be fit into 2862 4 times, resulting in a remainder of 298.
Put 4 as the next digit of the answer. 
Result so far: 154.0
If we take 2564 away from 2862, we end up with 298.
Grab the next digit (7) from the dividend, add it to 298, then carry on: 2987 / 641

Step 6:
The number 641 fits into 2987 4 times, leaving a remainder of 423.
The next digit of our result is 4. 
Result so far: 1544.0
Subtract 2564 from 2987 to get 423.
Append the next digit (9) from the dividend to 423 and continue with: 4239 / 641

On to step 7:
641 goes into 4239 6 times with a remainder of 393.
The number 6 becomes the next digit in our result. 
Result so far: 15446.0
The remainder is 393 after subtracting 3846 from 4239.
Fetch the next digit (9) from the dividend, attach it to 393 and continue: 3939 / 641

Advancing to step 8:
The number 641 fits into 3939 6 times, leaving a remainder of 93.
Use 6 as the next digit of our solution. 
Result so far: 154466.0
Subtract 3846 from 3939 to get 93.
Since there are no more digits in the dividend, we add a zero to the remainder making it 930, and continue the process.

Moving on to step 9:
If we divide 930 by 641, we get 1 and a remainder of 289.
The next digit of our result is 1. 
Result so far: 154466.1
The remainder is 289 after subtracting 641 from 930.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2890, and continue the process.

On to step 10:
The number 641 fits into 2890 4 times, leaving a remainder of 326.
Use 4 as the next digit of our solution. 
Result so far: 154466.14
The remainder is 326 after subtracting 2564 from 2890.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3260, and continue the process.

Step 11:
When dividing 3260 by 641, we get 5 with a remainder of 55.
Put 5 as the next digit of the answer. 
Result so far: 154466.145
Deduct 3205 from 3260 and we're left with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Advancing to step 12:
The number 641 fits into 550 0 times, leaving a remainder of 550.
The next digit of our result is 0. 
Result so far: 154466.145
If we take 0 away from 550, we end up with 550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5500, and continue the process.

Step 13:
5500 divided by 641 is 8 with a remainder of 372.
Record the quotient 8 as the next digit in the result. 
Result so far: 154466.14508
The remainder is 372 after subtracting 5128 from 5500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3720, and continue the process.

On to step 14:
641 goes into 3720 5 times with a remainder of 515.
Record the quotient 5 as the next digit in the result. 
Result so far: 154466.145085
Subtract 3205 from 3720 to get 515.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5150, and continue the process.

Moving on to step 15:
The number 641 fits into 5150 8 times, leaving a remainder of 22.
Use 8 as the next digit of our solution. 
Result so far: 154466.1450858
The remainder is 22 after subtracting 5128 from 5150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Advancing to step 16:
641 goes into 220 0 times with a remainder of 220.
The number 0 becomes the next digit in our result. 
Result so far: 154466.1450858
If we subtract 0 from 220, we get 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Our division results in 154466.1450858 with a remaining 2.2e-07.