We look at the division of 81306599 by 905 
We want to figure out the number of times 81306599 can be divided by 905.

Moving on to step 1:
905 can be fit into 8 0 times, resulting in a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 905

Step 2:
905 can be fit into 81 0 times, resulting in 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.
Append the next digit (3) from the dividend to 81 and continue with: 813 / 905

Step 3:
905 goes into 813 0 times with a remainder of 813.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 813 leaves us with 813.
Grab the next digit (0) from the dividend, add it to 813, then carry on: 8130 / 905

Step 4:
905 goes into 8130 8 times with a remainder of 890.
Write down 8 as next digit of the result. 
Result so far: 8.0
Subtracting 7240 from 8130 leaves us with 890.
Bring next digit (6) of the dividend behind the 890 and repeat the process: 8906 / 905

On to step 5:
If we divide 8906 by 905, we get 9 and a remainder of 761.
The number 9 becomes the next digit in our result. 
Result so far: 89.0
If we subtract 8145 from 8906, we get 761.
Bring next digit (5) of the dividend behind the 761 and repeat the process: 7615 / 905

Step 6:
905 can be fit into 7615 8 times, resulting in a remainder of 375.
Record the quotient 8 as the next digit in the result. 
Result so far: 898.0
Subtract 7240 from 7615 to get 375.
Append the next digit (9) from the dividend to 375 and continue with: 3759 / 905

Going ahead to step 7:
905 goes into 3759 4 times with a remainder of 139.
Write down 4 as next digit of the result. 
Result so far: 8984.0
The remainder is 139 after subtracting 3620 from 3759.
Take the next digit (9) from the dividend and append it to 139, then repeat: 1399 / 905

On to step 8:
905 goes into 1399 1 times with a remainder of 494.
Use 1 as the next digit of our solution. 
Result so far: 89841.0
If we subtract 905 from 1399, we get 494.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4940, and continue the process.

Moving on to step 9:
If we divide 4940 by 905, we get 5 and a remainder of 415.
The next digit of our result is 5. 
Result so far: 89841.5
Subtracting 4525 from 4940 leaves us with 415.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4150, and continue the process.

Step 10:
4150 divided by 905 is 4 with a remainder of 530.
Put 4 as the next digit of the answer. 
Result so far: 89841.54
If we take 3620 away from 4150, we end up with 530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5300, and continue the process.

Going ahead to step 11:
If we divide 5300 by 905, we get 5 and a remainder of 775.
Write down 5 as next digit of the result. 
Result so far: 89841.545
If we take 4525 away from 5300, we end up with 775.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7750, and continue the process.

Advancing to step 12:
When dividing 7750 by 905, we get 8 with a remainder of 510.
Record the quotient 8 as the next digit in the result. 
Result so far: 89841.5458
Deduct 7240 from 7750 and we're left with 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5100, and continue the process.

Going ahead to step 13:
5100 divided by 905 is 5 with a remainder of 575.
The next digit of our result is 5. 
Result so far: 89841.54585
Subtracting 4525 from 5100 leaves us with 575.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5750, and continue the process.

Moving on to step 14:
If we divide 5750 by 905, we get 6 and a remainder of 320.
The number 6 becomes the next digit in our result. 
Result so far: 89841.545856
Deduct 5430 from 5750 and we're left with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Moving on to step 15:
3200 divided by 905 is 3 with a remainder of 485.
Write down 3 as next digit of the result. 
Result so far: 89841.5458563
Subtract 2715 from 3200 to get 485.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4850, and continue the process.

Advancing to step 16:
If we divide 4850 by 905, we get 5 and a remainder of 325.
Put 5 as the next digit of the answer. 
Result so far: 89841.54585635
The remainder is 325 after subtracting 4525 from 4850.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3250, and continue the process.

After the division, we end up with 89841.54585635 and a remainder of 3.25e-07.