Let's divide 81286251 by 790
We want to divide 81286251 by 790.

Let's proceed to step 1:
8 divided by 790 is 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 790

Advancing to step 2:
81 divided by 790 is 0 with a remainder of 81.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 81 to get 81.
Grab the next digit (2) from the dividend, add it to 81, then carry on: 812 / 790

Let's proceed to step 3:
When dividing 812 by 790, we get 1 with a remainder of 22.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 790 from 812 leaves us with 22.
Grab the next digit (8) from the dividend, add it to 22, then carry on: 228 / 790

Advancing to step 4:
790 goes into 228 0 times with a remainder of 228.
Use 0 as the next digit of our solution. 
Result so far: 10.0
If we subtract 0 from 228, we get 228.
Fetch the next digit (6) from the dividend, attach it to 228 and continue: 2286 / 790

Going ahead to step 5:
The number 790 fits into 2286 2 times, leaving a remainder of 706.
Write down 2 as next digit of the result. 
Result so far: 102.0
Deduct 1580 from 2286 and we're left with 706.
Fetch the next digit (2) from the dividend, attach it to 706 and continue: 7062 / 790

Step 6:
7062 divided by 790 is 8 with a remainder of 742.
Record the quotient 8 as the next digit in the result. 
Result so far: 1028.0
If we subtract 6320 from 7062, we get 742.
Fetch the next digit (5) from the dividend, attach it to 742 and continue: 7425 / 790

Step 7:
The number 790 fits into 7425 9 times, leaving a remainder of 315.
Record the quotient 9 as the next digit in the result. 
Result so far: 10289.0
Subtract 7110 from 7425 to get 315.
Take the next digit (1) from the dividend and append it to 315, then repeat: 3151 / 790

On to step 8:
When dividing 3151 by 790, we get 3 with a remainder of 781.
Record the quotient 3 as the next digit in the result. 
Result so far: 102893.0
Subtracting 2370 from 3151 leaves us with 781.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7810, and continue the process.

Step 9:
7810 divided by 790 is 9 with a remainder of 700.
Write down 9 as next digit of the result. 
Result so far: 102893.9
Deduct 7110 from 7810 and we're left with 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7000, and continue the process.

Let's proceed to step 10:
If we divide 7000 by 790, we get 8 and a remainder of 680.
Put 8 as the next digit of the answer. 
Result so far: 102893.98
If we subtract 6320 from 7000, we get 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6800, and continue the process.

Step 11:
When dividing 6800 by 790, we get 8 with a remainder of 480.
Use 8 as the next digit of our solution. 
Result so far: 102893.988
If we subtract 6320 from 6800, we get 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

The final result is 102893.988 with a remainder of 0.048.