19938943 ÷ 813 
We want to figure out the number of times 19938943 can be divided by 813.

Step 1:
When dividing 1 by 813, we get 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Append the next digit (9) from the dividend to 1 and continue with: 19 / 813

Moving on to step 2:
19 divided by 813 is 0 with a remainder of 19.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 19, we end up with 19.
Take the next digit (9) from the dividend and append it to 19, then repeat: 199 / 813

Advancing to step 3:
When dividing 199 by 813, we get 0 with a remainder of 199.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 199, we get 199.
Include the next digit (3) from the dividend after 199, then repeat: 1993 / 813

Moving on to step 4:
If we divide 1993 by 813, we get 2 and a remainder of 367.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtract 1626 from 1993 to get 367.
Fetch the next digit (8) from the dividend, attach it to 367 and continue: 3678 / 813

Step 5:
813 goes into 3678 4 times with a remainder of 426.
Use 4 as the next digit of our solution. 
Result so far: 24.0
Subtract 3252 from 3678 to get 426.
Fetch the next digit (9) from the dividend, attach it to 426 and continue: 4269 / 813

Let's proceed to step 6:
The number 813 fits into 4269 5 times, leaving a remainder of 204.
The number 5 becomes the next digit in our result. 
Result so far: 245.0
Deduct 4065 from 4269 and we're left with 204.
Take the next digit (4) from the dividend and append it to 204, then repeat: 2044 / 813

Moving on to step 7:
If we divide 2044 by 813, we get 2 and a remainder of 418.
Record the quotient 2 as the next digit in the result. 
Result so far: 2452.0
Subtract 1626 from 2044 to get 418.
Include the next digit (3) from the dividend after 418, then repeat: 4183 / 813

Step 8:
813 can be fit into 4183 5 times, resulting in a remainder of 118.
Write down 5 as next digit of the result. 
Result so far: 24525.0
If we subtract 4065 from 4183, we get 118.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1180, and continue the process.

On to step 9:
If we divide 1180 by 813, we get 1 and a remainder of 367.
Use 1 as the next digit of our solution. 
Result so far: 24525.1
Deduct 813 from 1180 and we're left with 367.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3670, and continue the process.

Moving on to step 10:
813 can be fit into 3670 4 times, resulting in a remainder of 418.
The number 4 becomes the next digit in our result. 
Result so far: 24525.14
Subtract 3252 from 3670 to get 418.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4180, and continue the process.

Going ahead to step 11:
The number 813 fits into 4180 5 times, leaving a remainder of 115.
The number 5 becomes the next digit in our result. 
Result so far: 24525.145
Deduct 4065 from 4180 and we're left with 115.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

Advancing to step 12:
813 goes into 1150 1 times with a remainder of 337.
Write down 1 as next digit of the result. 
Result so far: 24525.1451
The remainder is 337 after subtracting 813 from 1150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3370, and continue the process.

Going ahead to step 13:
The number 813 fits into 3370 4 times, leaving a remainder of 118.
Put 4 as the next digit of the answer. 
Result so far: 24525.14514
The remainder is 118 after subtracting 3252 from 3370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1180, and continue the process.

Step 14:
The number 813 fits into 1180 1 times, leaving a remainder of 367.
The number 1 becomes the next digit in our result. 
Result so far: 24525.145141
The remainder is 367 after subtracting 813 from 1180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3670, and continue the process.

Step 15:
813 can be fit into 3670 4 times, resulting in a remainder of 418.
Use 4 as the next digit of our solution. 
Result so far: 24525.1451414
Deduct 3252 from 3670 and we're left with 418.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4180, and continue the process.

Moving on to step 16:
4180 divided by 813 is 5 with a remainder of 115.
Put 5 as the next digit of the answer. 
Result so far: 24525.14514145
If we take 4065 away from 4180, we end up with 115.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

Our division results in 24525.14514145 with a remaining 1.15e-07.