81072666 ÷ 790 
We want to figure out the number of times 81072666 can be divided by 790.

Step 1:
If we divide 8 by 790, we get 0 and a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 790

On to step 2:
The number 790 fits into 81 0 times, leaving a remainder of 81.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 81, we end up with 81.
Bring next digit (0) of the dividend behind the 81 and repeat the process: 810 / 790

Advancing to step 3:
790 goes into 810 1 times with a remainder of 20.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 790 away from 810, we end up with 20.
Bring next digit (7) of the dividend behind the 20 and repeat the process: 207 / 790

Let's proceed to step 4:
When dividing 207 by 790, we get 0 with a remainder of 207.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
If we subtract 0 from 207, we get 207.
Include the next digit (2) from the dividend after 207, then repeat: 2072 / 790

Moving on to step 5:
2072 divided by 790 is 2 with a remainder of 492.
The number 2 becomes the next digit in our result. 
Result so far: 102.0
If we subtract 1580 from 2072, we get 492.
Take the next digit (6) from the dividend and append it to 492, then repeat: 4926 / 790

Moving on to step 6:
The number 790 fits into 4926 6 times, leaving a remainder of 186.
Record the quotient 6 as the next digit in the result. 
Result so far: 1026.0
If we subtract 4740 from 4926, we get 186.
Grab the next digit (6) from the dividend, add it to 186, then carry on: 1866 / 790

Let's proceed to step 7:
If we divide 1866 by 790, we get 2 and a remainder of 286.
Record the quotient 2 as the next digit in the result. 
Result so far: 10262.0
If we take 1580 away from 1866, we end up with 286.
Take the next digit (6) from the dividend and append it to 286, then repeat: 2866 / 790

Going ahead to step 8:
2866 divided by 790 is 3 with a remainder of 496.
Record the quotient 3 as the next digit in the result. 
Result so far: 102623.0
If we subtract 2370 from 2866, we get 496.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4960, and continue the process.

On to step 9:
790 can be fit into 4960 6 times, resulting in a remainder of 220.
Record the quotient 6 as the next digit in the result. 
Result so far: 102623.6
The remainder is 220 after subtracting 4740 from 4960.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Step 10:
2200 divided by 790 is 2 with a remainder of 620.
Use 2 as the next digit of our solution. 
Result so far: 102623.62
If we take 1580 away from 2200, we end up with 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6200, and continue the process.

Step 11:
When dividing 6200 by 790, we get 7 with a remainder of 670.
Write down 7 as next digit of the result. 
Result so far: 102623.627
If we take 5530 away from 6200, we end up with 670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6700, and continue the process.

Let's proceed to step 12:
When dividing 6700 by 790, we get 8 with a remainder of 380.
The number 8 becomes the next digit in our result. 
Result so far: 102623.6278
Subtracting 6320 from 6700 leaves us with 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Going ahead to step 13:
790 can be fit into 3800 4 times, resulting in a remainder of 640.
The number 4 becomes the next digit in our result. 
Result so far: 102623.62784
If we subtract 3160 from 3800, we get 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Going ahead to step 14:
If we divide 6400 by 790, we get 8 and a remainder of 80.
Use 8 as the next digit of our solution. 
Result so far: 102623.627848
Subtract 6320 from 6400 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Let's proceed to step 15:
790 goes into 800 1 times with a remainder of 10.
Put 1 as the next digit of the answer. 
Result so far: 102623.6278481
If we take 790 away from 800, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 16:
790 goes into 100 0 times with a remainder of 100.
Use 0 as the next digit of our solution. 
Result so far: 102623.6278481
If we subtract 0 from 100, we get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

The quotient of the division is 102623.6278481, and the remainder is 1e-07.