We look at the division of 77120185 by 451 
We want to figure out the number of times 77120185 can be divided by 451.

Going ahead to step 1:
451 can be fit into 7 0 times, resulting in a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Fetch the next digit (7) from the dividend, attach it to 7 and continue: 77 / 451

Advancing to step 2:
When dividing 77 by 451, we get 0 with a remainder of 77.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 77, we get 77.
Take the next digit (1) from the dividend and append it to 77, then repeat: 771 / 451

Moving on to step 3:
The number 451 fits into 771 1 times, leaving a remainder of 320.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 451 away from 771, we end up with 320.
Take the next digit (2) from the dividend and append it to 320, then repeat: 3202 / 451

Step 4:
451 can be fit into 3202 7 times, resulting in a remainder of 45.
Put 7 as the next digit of the answer. 
Result so far: 17.0
Deduct 3157 from 3202 and we're left with 45.
Bring next digit (0) of the dividend behind the 45 and repeat the process: 450 / 451

Going ahead to step 5:
451 goes into 450 0 times with a remainder of 450.
The number 0 becomes the next digit in our result. 
Result so far: 170.0
Deduct 0 from 450 and we're left with 450.
Include the next digit (1) from the dividend after 450, then repeat: 4501 / 451

Moving on to step 6:
If we divide 4501 by 451, we get 9 and a remainder of 442.
Use 9 as the next digit of our solution. 
Result so far: 1709.0
Subtracting 4059 from 4501 leaves us with 442.
Fetch the next digit (8) from the dividend, attach it to 442 and continue: 4428 / 451

Step 7:
4428 divided by 451 is 9 with a remainder of 369.
Record the quotient 9 as the next digit in the result. 
Result so far: 17099.0
Subtract 4059 from 4428 to get 369.
Take the next digit (5) from the dividend and append it to 369, then repeat: 3695 / 451

On to step 8:
The number 451 fits into 3695 8 times, leaving a remainder of 87.
The next digit of our result is 8. 
Result so far: 170998.0
If we take 3608 away from 3695, we end up with 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Going ahead to step 9:
The number 451 fits into 870 1 times, leaving a remainder of 419.
Record the quotient 1 as the next digit in the result. 
Result so far: 170998.1
Subtracting 451 from 870 leaves us with 419.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4190, and continue the process.

Going ahead to step 10:
If we divide 4190 by 451, we get 9 and a remainder of 131.
The next digit of our result is 9. 
Result so far: 170998.19
Subtracting 4059 from 4190 leaves us with 131.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1310, and continue the process.

On to step 11:
If we divide 1310 by 451, we get 2 and a remainder of 408.
Use 2 as the next digit of our solution. 
Result so far: 170998.192
Deduct 902 from 1310 and we're left with 408.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4080, and continue the process.

Step 12:
The number 451 fits into 4080 9 times, leaving a remainder of 21.
The next digit of our result is 9. 
Result so far: 170998.1929
Subtract 4059 from 4080 to get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Step 13:
210 divided by 451 is 0 with a remainder of 210.
The next digit of our result is 0. 
Result so far: 170998.1929
If we subtract 0 from 210, we get 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Advancing to step 14:
When dividing 2100 by 451, we get 4 with a remainder of 296.
Use 4 as the next digit of our solution. 
Result so far: 170998.192904
If we subtract 1804 from 2100, we get 296.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

Going ahead to step 15:
If we divide 2960 by 451, we get 6 and a remainder of 254.
The number 6 becomes the next digit in our result. 
Result so far: 170998.1929046
If we subtract 2706 from 2960, we get 254.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2540, and continue the process.

Let's proceed to step 16:
The number 451 fits into 2540 5 times, leaving a remainder of 285.
Write down 5 as next digit of the result. 
Result so far: 170998.19290465
Subtracting 2255 from 2540 leaves us with 285.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2850, and continue the process.

The final result is 170998.19290465 with a remainder of 2.85e-07.