We divide 81793864 by 451
We want to figure out the number of times 81793864 can be divided by 451.

Let's proceed to step 1:
If we divide 8 by 451, we get 0 and 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.
Include the next digit (1) from the dividend after 8, then repeat: 81 / 451

Let's proceed to step 2:
The number 451 fits into 81 0 times, leaving a remainder of 81.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 81 leaves us with 81.
Bring next digit (7) of the dividend behind the 81 and repeat the process: 817 / 451

Moving on to step 3:
817 divided by 451 is 1 with a remainder of 366.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 451 from 817, we get 366.
Append the next digit (9) from the dividend to 366 and continue with: 3669 / 451

Going ahead to step 4:
451 goes into 3669 8 times with a remainder of 61.
Write down 8 as next digit of the result. 
Result so far: 18.0
Subtract 3608 from 3669 to get 61.
Fetch the next digit (3) from the dividend, attach it to 61 and continue: 613 / 451

Advancing to step 5:
When dividing 613 by 451, we get 1 with a remainder of 162.
Record the quotient 1 as the next digit in the result. 
Result so far: 181.0
The remainder is 162 after subtracting 451 from 613.
Take the next digit (8) from the dividend and append it to 162, then repeat: 1628 / 451

Going ahead to step 6:
When dividing 1628 by 451, we get 3 with a remainder of 275.
The next digit of our result is 3. 
Result so far: 1813.0
Subtract 1353 from 1628 to get 275.
Append the next digit (6) from the dividend to 275 and continue with: 2756 / 451

Let's proceed to step 7:
When dividing 2756 by 451, we get 6 with a remainder of 50.
The next digit of our result is 6. 
Result so far: 18136.0
The remainder is 50 after subtracting 2706 from 2756.
Bring next digit (4) of the dividend behind the 50 and repeat the process: 504 / 451

Moving on to step 8:
The number 451 fits into 504 1 times, leaving a remainder of 53.
The next digit of our result is 1. 
Result so far: 181361.0
If we take 451 away from 504, we end up with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Step 9:
The number 451 fits into 530 1 times, leaving a remainder of 79.
Put 1 as the next digit of the answer. 
Result so far: 181361.1
Subtracting 451 from 530 leaves us with 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

On to step 10:
When dividing 790 by 451, we get 1 with a remainder of 339.
The number 1 becomes the next digit in our result. 
Result so far: 181361.11
If we take 451 away from 790, we end up with 339.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3390, and continue the process.

After the division, we end up with 181361.11 and a remainder of 0.339.