77628869 ÷ 454 
We're looking to find how many times 454 goes into 77628869.

Going ahead to step 1:
454 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
Subtracting 0 from 7 leaves us with 7.
Append the next digit (7) from the dividend to 7 and continue with: 77 / 454

Step 2:
454 can be fit into 77 0 times, resulting in a remainder of 77.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 77, we end up with 77.
Fetch the next digit (6) from the dividend, attach it to 77 and continue: 776 / 454

Step 3:
The number 454 fits into 776 1 times, leaving a remainder of 322.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 454 away from 776, we end up with 322.
Include the next digit (2) from the dividend after 322, then repeat: 3222 / 454

Advancing to step 4:
If we divide 3222 by 454, we get 7 and a remainder of 44.
Write down 7 as next digit of the result. 
Result so far: 17.0
Subtracting 3178 from 3222 leaves us with 44.
Grab the next digit (8) from the dividend, add it to 44, then carry on: 448 / 454

Step 5:
454 can be fit into 448 0 times, resulting in a remainder of 448.
The next digit of our result is 0. 
Result so far: 170.0
Deduct 0 from 448 and we're left with 448.
Append the next digit (8) from the dividend to 448 and continue with: 4488 / 454

On to step 6:
If we divide 4488 by 454, we get 9 and a remainder of 402.
The number 9 becomes the next digit in our result. 
Result so far: 1709.0
Subtract 4086 from 4488 to get 402.
Bring next digit (6) of the dividend behind the 402 and repeat the process: 4026 / 454

Moving on to step 7:
454 can be fit into 4026 8 times, resulting in a remainder of 394.
The next digit of our result is 8. 
Result so far: 17098.0
Deduct 3632 from 4026 and we're left with 394.
Append the next digit (9) from the dividend to 394 and continue with: 3949 / 454

Going ahead to step 8:
454 can be fit into 3949 8 times, resulting in a remainder of 317.
The number 8 becomes the next digit in our result. 
Result so far: 170988.0
If we take 3632 away from 3949, we end up with 317.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3170, and continue the process.

Moving on to step 9:
454 goes into 3170 6 times with a remainder of 446.
Record the quotient 6 as the next digit in the result. 
Result so far: 170988.6
If we subtract 2724 from 3170, we get 446.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4460, and continue the process.

Advancing to step 10:
4460 divided by 454 is 9 with a remainder of 374.
Write down 9 as next digit of the result. 
Result so far: 170988.69
Subtracting 4086 from 4460 leaves us with 374.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3740, and continue the process.

Going ahead to step 11:
3740 divided by 454 is 8 with a remainder of 108.
The number 8 becomes the next digit in our result. 
Result so far: 170988.698
If we subtract 3632 from 3740, we get 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

Advancing to step 12:
1080 divided by 454 is 2 with a remainder of 172.
The number 2 becomes the next digit in our result. 
Result so far: 170988.6982
If we take 908 away from 1080, we end up with 172.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1720, and continue the process.

Going ahead to step 13:
If we divide 1720 by 454, we get 3 and a remainder of 358.
Record the quotient 3 as the next digit in the result. 
Result so far: 170988.69823
Subtract 1362 from 1720 to get 358.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3580, and continue the process.

Let's proceed to step 14:
The number 454 fits into 3580 7 times, leaving a remainder of 402.
The number 7 becomes the next digit in our result. 
Result so far: 170988.698237
If we take 3178 away from 3580, we end up with 402.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4020, and continue the process.

Going ahead to step 15:
4020 divided by 454 is 8 with a remainder of 388.
Put 8 as the next digit of the answer. 
Result so far: 170988.6982378
If we subtract 3632 from 4020, we get 388.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3880, and continue the process.

On to step 16:
3880 divided by 454 is 8 with a remainder of 248.
Use 8 as the next digit of our solution. 
Result so far: 170988.69823788
If we subtract 3632 from 3880, we get 248.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

After the division, we end up with 170988.69823788 and a remainder of 2.48e-07.