We divide 80138379 by 789
Let's see how many times 789 fits into 80138379.

Going ahead to step 1:
If we divide 8 by 789, we get 0 and a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Fetch the next digit (0) from the dividend, attach it to 8 and continue: 80 / 789

Let's proceed to step 2:
The number 789 fits into 80 0 times, leaving a remainder of 80.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 80, we end up with 80.
Fetch the next digit (1) from the dividend, attach it to 80 and continue: 801 / 789

Advancing to step 3:
When dividing 801 by 789, we get 1 with a remainder of 12.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 12 after subtracting 789 from 801.
Grab the next digit (3) from the dividend, add it to 12, then carry on: 123 / 789

Let's proceed to step 4:
When dividing 123 by 789, we get 0 with a remainder of 123.
Use 0 as the next digit of our solution. 
Result so far: 10.0
If we take 0 away from 123, we end up with 123.
Take the next digit (8) from the dividend and append it to 123, then repeat: 1238 / 789

On to step 5:
The number 789 fits into 1238 1 times, leaving a remainder of 449.
Write down 1 as next digit of the result. 
Result so far: 101.0
The remainder is 449 after subtracting 789 from 1238.
Take the next digit (3) from the dividend and append it to 449, then repeat: 4493 / 789

Going ahead to step 6:
4493 divided by 789 is 5 with a remainder of 548.
Write down 5 as next digit of the result. 
Result so far: 1015.0
Subtracting 3945 from 4493 leaves us with 548.
Grab the next digit (7) from the dividend, add it to 548, then carry on: 5487 / 789

On to step 7:
5487 divided by 789 is 6 with a remainder of 753.
Record the quotient 6 as the next digit in the result. 
Result so far: 10156.0
If we take 4734 away from 5487, we end up with 753.
Bring next digit (9) of the dividend behind the 753 and repeat the process: 7539 / 789

Moving on to step 8:
789 can be fit into 7539 9 times, resulting in a remainder of 438.
The number 9 becomes the next digit in our result. 
Result so far: 101569.0
Deduct 7101 from 7539 and we're left with 438.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4380, and continue the process.

Let's proceed to step 9:
When dividing 4380 by 789, we get 5 with a remainder of 435.
The number 5 becomes the next digit in our result. 
Result so far: 101569.5
Subtracting 3945 from 4380 leaves us with 435.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4350, and continue the process.

On to step 10:
4350 divided by 789 is 5 with a remainder of 405.
Record the quotient 5 as the next digit in the result. 
Result so far: 101569.55
Subtract 3945 from 4350 to get 405.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4050, and continue the process.

The final outcome is 101569.55, with a leftover of 0.405.