We look at the division of 99120306 by 840 
We want to figure out the number of times 99120306 can be divided by 840.

Moving on to step 1:
9 divided by 840 is 0 with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Take the next digit (9) from the dividend and append it to 9, then repeat: 99 / 840

Let's proceed to step 2:
99 divided by 840 is 0 with a remainder of 99.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 99 after subtracting 0 from 99.
Append the next digit (1) from the dividend to 99 and continue with: 991 / 840

On to step 3:
840 goes into 991 1 times with a remainder of 151.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 840 from 991 leaves us with 151.
Grab the next digit (2) from the dividend, add it to 151, then carry on: 1512 / 840

Moving on to step 4:
840 can be fit into 1512 1 times, resulting in a remainder of 672.
Record the quotient 1 as the next digit in the result. 
Result so far: 11.0
The remainder is 672 after subtracting 840 from 1512.
Include the next digit (0) from the dividend after 672, then repeat: 6720 / 840

Going ahead to step 5:
If we divide 6720 by 840, we get 8 and a remainder of 0.
Record the quotient 8 as the next digit in the result. 
Result so far: 118.0
Subtracting 6720 from 6720 leaves us with 0.
Grab the next digit (3) from the dividend, add it to 0, then carry on: 3 / 840

On to step 6:
840 goes into 3 0 times with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 1180.0
If we subtract 0 from 3, we get 3.
Fetch the next digit (0) from the dividend, attach it to 3 and continue: 30 / 840

Step 7:
The number 840 fits into 30 0 times, leaving a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 11800.0
Subtracting 0 from 30 leaves us with 30.
Bring next digit (6) of the dividend behind the 30 and repeat the process: 306 / 840

Going ahead to step 8:
840 can be fit into 306 0 times, resulting in a remainder of 306.
Write down 0 as next digit of the result. 
Result so far: 118000.0
If we subtract 0 from 306, we get 306.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3060, and continue the process.

Going ahead to step 9:
When dividing 3060 by 840, we get 3 with a remainder of 540.
Use 3 as the next digit of our solution. 
Result so far: 118000.3
If we subtract 2520 from 3060, we get 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

On to step 10:
5400 divided by 840 is 6 with a remainder of 360.
Use 6 as the next digit of our solution. 
Result so far: 118000.36
Subtract 5040 from 5400 to get 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Step 11:
When dividing 3600 by 840, we get 4 with a remainder of 240.
The number 4 becomes the next digit in our result. 
Result so far: 118000.364
If we subtract 3360 from 3600, we get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Moving on to step 12:
840 can be fit into 2400 2 times, resulting in a remainder of 720.
Record the quotient 2 as the next digit in the result. 
Result so far: 118000.3642
If we subtract 1680 from 2400, we get 720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7200, and continue the process.

Advancing to step 13:
When dividing 7200 by 840, we get 8 with a remainder of 480.
The number 8 becomes the next digit in our result. 
Result so far: 118000.36428
Subtract 6720 from 7200 to get 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

On to step 14:
When dividing 4800 by 840, we get 5 with a remainder of 600.
Use 5 as the next digit of our solution. 
Result so far: 118000.364285
Subtracting 4200 from 4800 leaves us with 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

Moving on to step 15:
If we divide 6000 by 840, we get 7 and a remainder of 120.
The next digit of our result is 7. 
Result so far: 118000.3642857
If we subtract 5880 from 6000, we get 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

On to step 16:
840 goes into 1200 1 times with a remainder of 360.
Put 1 as the next digit of the answer. 
Result so far: 118000.36428571
If we take 840 away from 1200, we end up with 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

After the division, we end up with 118000.36428571 and a remainder of 3.6e-07.