81450538 ÷ 780 
We're looking to find how many times 780 goes into 81450538.

Let's proceed to step 1:
When dividing 8 by 780, we get 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 780

Advancing to step 2:
780 can be fit into 81 0 times, resulting in a remainder of 81.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 81 leaves us with 81.
Grab the next digit (4) from the dividend, add it to 81, then carry on: 814 / 780

On to step 3:
If we divide 814 by 780, we get 1 and a remainder of 34.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 780 from 814, we get 34.
Grab the next digit (5) from the dividend, add it to 34, then carry on: 345 / 780

Advancing to step 4:
345 divided by 780 is 0 with a remainder of 345.
Put 0 as the next digit of the answer. 
Result so far: 10.0
Deduct 0 from 345 and we're left with 345.
Take the next digit (0) from the dividend and append it to 345, then repeat: 3450 / 780

Going ahead to step 5:
780 goes into 3450 4 times with a remainder of 330.
Record the quotient 4 as the next digit in the result. 
Result so far: 104.0
Deduct 3120 from 3450 and we're left with 330.
Grab the next digit (5) from the dividend, add it to 330, then carry on: 3305 / 780

Step 6:
3305 divided by 780 is 4 with a remainder of 185.
Write down 4 as next digit of the result. 
Result so far: 1044.0
The remainder is 185 after subtracting 3120 from 3305.
Take the next digit (3) from the dividend and append it to 185, then repeat: 1853 / 780

Going ahead to step 7:
When dividing 1853 by 780, we get 2 with a remainder of 293.
Write down 2 as next digit of the result. 
Result so far: 10442.0
Subtract 1560 from 1853 to get 293.
Include the next digit (8) from the dividend after 293, then repeat: 2938 / 780

Let's proceed to step 8:
The number 780 fits into 2938 3 times, leaving a remainder of 598.
Put 3 as the next digit of the answer. 
Result so far: 104423.0
The remainder is 598 after subtracting 2340 from 2938.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5980, and continue the process.

Advancing to step 9:
When dividing 5980 by 780, we get 7 with a remainder of 520.
Record the quotient 7 as the next digit in the result. 
Result so far: 104423.7
Subtracting 5460 from 5980 leaves us with 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

Advancing to step 10:
If we divide 5200 by 780, we get 6 and a remainder of 520.
The number 6 becomes the next digit in our result. 
Result so far: 104423.76
Subtract 4680 from 5200 to get 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

On to step 11:
If we divide 5200 by 780, we get 6 and a remainder of 520.
Use 6 as the next digit of our solution. 
Result so far: 104423.766
Subtract 4680 from 5200 to get 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

The final outcome is 104423.766, with a leftover of 0.052.