81724012 divided by 945 
We want to figure out the number of times 81724012 can be divided by 945.

On to step 1:
When dividing 8 by 945, we get 0 with a remainder of 8.
Record the quotient 0 as the next digit in 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 / 945

Let's proceed to step 2:
945 can be fit into 81 0 times, resulting in a remainder of 81.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 81, we end up with 81.
Bring next digit (7) of the dividend behind the 81 and repeat the process: 817 / 945

Advancing to step 3:
817 divided by 945 is 0 with a remainder of 817.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 817 leaves us with 817.
Take the next digit (2) from the dividend and append it to 817, then repeat: 8172 / 945

Advancing to step 4:
8172 divided by 945 is 8 with a remainder of 612.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Subtracting 7560 from 8172 leaves us with 612.
Bring next digit (4) of the dividend behind the 612 and repeat the process: 6124 / 945

Moving on to step 5:
When dividing 6124 by 945, we get 6 with a remainder of 454.
Use 6 as the next digit of our solution. 
Result so far: 86.0
If we take 5670 away from 6124, we end up with 454.
Grab the next digit (0) from the dividend, add it to 454, then carry on: 4540 / 945

Advancing to step 6:
The number 945 fits into 4540 4 times, leaving a remainder of 760.
Put 4 as the next digit of the answer. 
Result so far: 864.0
Subtracting 3780 from 4540 leaves us with 760.
Bring next digit (1) of the dividend behind the 760 and repeat the process: 7601 / 945

On to step 7:
When dividing 7601 by 945, we get 8 with a remainder of 41.
Use 8 as the next digit of our solution. 
Result so far: 8648.0
Subtracting 7560 from 7601 leaves us with 41.
Fetch the next digit (2) from the dividend, attach it to 41 and continue: 412 / 945

Step 8:
The number 945 fits into 412 0 times, leaving a remainder of 412.
The number 0 becomes the next digit in our result. 
Result so far: 86480.0
The remainder is 412 after subtracting 0 from 412.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4120, and continue the process.

Advancing to step 9:
When dividing 4120 by 945, we get 4 with a remainder of 340.
Use 4 as the next digit of our solution. 
Result so far: 86480.4
Subtracting 3780 from 4120 leaves us with 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Moving on to step 10:
945 goes into 3400 3 times with a remainder of 565.
Use 3 as the next digit of our solution. 
Result so far: 86480.43
Deduct 2835 from 3400 and we're left with 565.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5650, and continue the process.

Let's proceed to step 11:
When dividing 5650 by 945, we get 5 with a remainder of 925.
Put 5 as the next digit of the answer. 
Result so far: 86480.435
Subtract 4725 from 5650 to get 925.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9250, and continue the process.

Step 12:
9250 divided by 945 is 9 with a remainder of 745.
Record the quotient 9 as the next digit in the result. 
Result so far: 86480.4359
Subtract 8505 from 9250 to get 745.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7450, and continue the process.

Moving on to step 13:
7450 divided by 945 is 7 with a remainder of 835.
The next digit of our result is 7. 
Result so far: 86480.43597
Subtract 6615 from 7450 to get 835.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8350, and continue the process.

Advancing to step 14:
When dividing 8350 by 945, we get 8 with a remainder of 790.
Write down 8 as next digit of the result. 
Result so far: 86480.435978
If we take 7560 away from 8350, we end up with 790.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7900, and continue the process.

Going ahead to step 15:
945 goes into 7900 8 times with a remainder of 340.
Record the quotient 8 as the next digit in the result. 
Result so far: 86480.4359788
Subtract 7560 from 7900 to get 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

The final result is 86480.4359788 with a remainder of 3.4e-06.