Let's divide 81280365 by 690
Let's see how many times 690 fits into 81280365.

On to step 1:
690 can be fit into 8 0 times, resulting in a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 690

Step 2:
The number 690 fits into 81 0 times, leaving a remainder of 81.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 81 after subtracting 0 from 81.
Fetch the next digit (2) from the dividend, attach it to 81 and continue: 812 / 690

Step 3:
812 divided by 690 is 1 with a remainder of 122.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 690 from 812, we get 122.
Append the next digit (8) from the dividend to 122 and continue with: 1228 / 690

On to step 4:
1228 divided by 690 is 1 with a remainder of 538.
The next digit of our result is 1. 
Result so far: 11.0
Deduct 690 from 1228 and we're left with 538.
Fetch the next digit (0) from the dividend, attach it to 538 and continue: 5380 / 690

Advancing to step 5:
The number 690 fits into 5380 7 times, leaving a remainder of 550.
Use 7 as the next digit of our solution. 
Result so far: 117.0
Subtracting 4830 from 5380 leaves us with 550.
Take the next digit (3) from the dividend and append it to 550, then repeat: 5503 / 690

Let's proceed to step 6:
690 can be fit into 5503 7 times, resulting in a remainder of 673.
The next digit of our result is 7. 
Result so far: 1177.0
If we take 4830 away from 5503, we end up with 673.
Grab the next digit (6) from the dividend, add it to 673, then carry on: 6736 / 690

Moving on to step 7:
If we divide 6736 by 690, we get 9 and a remainder of 526.
Put 9 as the next digit of the answer. 
Result so far: 11779.0
Deduct 6210 from 6736 and we're left with 526.
Append the next digit (5) from the dividend to 526 and continue with: 5265 / 690

Step 8:
690 goes into 5265 7 times with a remainder of 435.
Use 7 as the next digit of our solution. 
Result so far: 117797.0
If we take 4830 away from 5265, we end up 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.

Step 9:
690 can be fit into 4350 6 times, resulting in a remainder of 210.
Record the quotient 6 as the next digit in the result. 
Result so far: 117797.6
Deduct 4140 from 4350 and we're left with 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Step 10:
When dividing 2100 by 690, we get 3 with a remainder of 30.
The next digit of our result is 3. 
Result so far: 117797.63
If we subtract 2070 from 2100, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 11:
When dividing 300 by 690, we get 0 with a remainder of 300.
Record the quotient 0 as the next digit in the result. 
Result so far: 117797.63
Subtract 0 from 300 to get 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Moving on to step 12:
When dividing 3000 by 690, we get 4 with a remainder of 240.
Write down 4 as next digit of the result. 
Result so far: 117797.6304
If we subtract 2760 from 3000, we get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Let's proceed to step 13:
2400 divided by 690 is 3 with a remainder of 330.
Record the quotient 3 as the next digit in the result. 
Result so far: 117797.63043
Subtract 2070 from 2400 to get 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

Let's proceed to step 14:
3300 divided by 690 is 4 with a remainder of 540.
The number 4 becomes the next digit in our result. 
Result so far: 117797.630434
Subtract 2760 from 3300 to get 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

Moving on to step 15:
5400 divided by 690 is 7 with a remainder of 570.
The next digit of our result is 7. 
Result so far: 117797.6304347
Subtract 4830 from 5400 to get 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5700, and continue the process.

Advancing to step 16:
When dividing 5700 by 690, we get 8 with a remainder of 180.
The next digit of our result is 8. 
Result so far: 117797.63043478
Deduct 5520 from 5700 and we're left with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

The final result is 117797.63043478 with a remainder of 1.8e-07.