79371378 ÷ 813 
We want to figure out the number of times 79371378 can be divided by 813.

Let's proceed to step 1:
If we divide 7 by 813, we get 0 and a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Take the next digit (9) from the dividend and append it to 7, then repeat: 79 / 813

Going ahead to step 2:
813 goes into 79 0 times with a remainder of 79.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 79, we get 79.
Bring next digit (3) of the dividend behind the 79 and repeat the process: 793 / 813

Advancing to step 3:
The number 813 fits into 793 0 times, leaving a remainder of 793.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 793 and we're left with 793.
Bring next digit (7) of the dividend behind the 793 and repeat the process: 7937 / 813

Advancing to step 4:
When dividing 7937 by 813, we get 9 with a remainder of 620.
Use 9 as the next digit of our solution. 
Result so far: 9.0
Subtracting 7317 from 7937 leaves us with 620.
Append the next digit (1) from the dividend to 620 and continue with: 6201 / 813

Let's proceed to step 5:
6201 divided by 813 is 7 with a remainder of 510.
Put 7 as the next digit of the answer. 
Result so far: 97.0
The remainder is 510 after subtracting 5691 from 6201.
Append the next digit (3) from the dividend to 510 and continue with: 5103 / 813

Going ahead to step 6:
When dividing 5103 by 813, we get 6 with a remainder of 225.
The number 6 becomes the next digit in our result. 
Result so far: 976.0
If we take 4878 away from 5103, we end up with 225.
Grab the next digit (7) from the dividend, add it to 225, then carry on: 2257 / 813

Moving on to step 7:
The number 813 fits into 2257 2 times, leaving a remainder of 631.
The next digit of our result is 2. 
Result so far: 9762.0
Subtracting 1626 from 2257 leaves us with 631.
Grab the next digit (8) from the dividend, add it to 631, then carry on: 6318 / 813

Advancing to step 8:
When dividing 6318 by 813, we get 7 with a remainder of 627.
The number 7 becomes the next digit in our result. 
Result so far: 97627.0
Subtracting 5691 from 6318 leaves us with 627.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6270, and continue the process.

Step 9:
The number 813 fits into 6270 7 times, leaving a remainder of 579.
Use 7 as the next digit of our solution. 
Result so far: 97627.7
Subtract 5691 from 6270 to get 579.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5790, and continue the process.

On to step 10:
When dividing 5790 by 813, we get 7 with a remainder of 99.
Write down 7 as next digit of the result. 
Result so far: 97627.77
Deduct 5691 from 5790 and we're left with 99.
Since there are no more digits in the dividend, we add a zero to the remainder making it 990, and continue the process.

Our division results in 97627.77 with a remaining 0.099.