Let's divide 81645312 by 612
We want to figure out the number of times 81645312 can be divided by 612.

On to step 1:
612 goes into 8 0 times with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 612

Let's proceed to step 2:
612 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 subtract 0 from 81, we get 81.
Fetch the next digit (6) from the dividend, attach it to 81 and continue: 816 / 612

Moving on to step 3:
When dividing 816 by 612, we get 1 with a remainder of 204.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 612 from 816 leaves us with 204.
Bring next digit (4) of the dividend behind the 204 and repeat the process: 2044 / 612

Step 4:
612 can be fit into 2044 3 times, resulting in a remainder of 208.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
Subtracting 1836 from 2044 leaves us with 208.
Bring next digit (5) of the dividend behind the 208 and repeat the process: 2085 / 612

Let's proceed to step 5:
612 can be fit into 2085 3 times, resulting in a remainder of 249.
The number 3 becomes the next digit in our result. 
Result so far: 133.0
Subtracting 1836 from 2085 leaves us with 249.
Bring next digit (3) of the dividend behind the 249 and repeat the process: 2493 / 612

Let's proceed to step 6:
2493 divided by 612 is 4 with a remainder of 45.
Write down 4 as next digit of the result. 
Result so far: 1334.0
Subtract 2448 from 2493 to get 45.
Fetch the next digit (1) from the dividend, attach it to 45 and continue: 451 / 612

Moving on to step 7:
451 divided by 612 is 0 with a remainder of 451.
The number 0 becomes the next digit in our result. 
Result so far: 13340.0
Subtracting 0 from 451 leaves us with 451.
Take the next digit (2) from the dividend and append it to 451, then repeat: 4512 / 612

Step 8:
612 can be fit into 4512 7 times, resulting in a remainder of 228.
The number 7 becomes the next digit in our result. 
Result so far: 133407.0
If we subtract 4284 from 4512, we get 228.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2280, and continue the process.

Advancing to step 9:
612 goes into 2280 3 times with a remainder of 444.
Put 3 as the next digit of the answer. 
Result so far: 133407.3
The remainder is 444 after subtracting 1836 from 2280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4440, and continue the process.

Step 10:
4440 divided by 612 is 7 with a remainder of 156.
Record the quotient 7 as the next digit in the result. 
Result so far: 133407.37
If we subtract 4284 from 4440, we get 156.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1560, and continue the process.

Advancing to step 11:
612 can be fit into 1560 2 times, resulting in a remainder of 336.
Use 2 as the next digit of our solution. 
Result so far: 133407.372
The remainder is 336 after subtracting 1224 from 1560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3360, and continue the process.

Let's proceed to step 12:
612 goes into 3360 5 times with a remainder of 300.
Use 5 as the next digit of our solution. 
Result so far: 133407.3725
The remainder is 300 after subtracting 3060 from 3360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Advancing to step 13:
If we divide 3000 by 612, we get 4 and a remainder of 552.
Put 4 as the next digit of the answer. 
Result so far: 133407.37254
If we subtract 2448 from 3000, we get 552.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5520, and continue the process.

Going ahead to step 14:
When dividing 5520 by 612, we get 9 with a remainder of 12.
Use 9 as the next digit of our solution. 
Result so far: 133407.372549
If we take 5508 away from 5520, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 15:
The number 612 fits into 120 0 times, leaving a remainder of 120.
Use 0 as the next digit of our solution. 
Result so far: 133407.372549
Subtracting 0 from 120 leaves us with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

On to step 16:
When dividing 1200 by 612, we get 1 with a remainder of 588.
The next digit of our result is 1. 
Result so far: 133407.37254901
Deduct 612 from 1200 and we're left with 588.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5880, and continue the process.

After the division, we end up with 133407.37254901 and a remainder of 5.88e-07.