77380569 ÷ 109 
Our goal is to divide 77380569 by 109.

Step 1:
109 goes into 7 0 times with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Fetch the next digit (7) from the dividend, attach it to 7 and continue: 77 / 109

On to step 2:
When dividing 77 by 109, we get 0 with a remainder of 77.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 77 to get 77.
Grab the next digit (3) from the dividend, add it to 77, then carry on: 773 / 109

Advancing to step 3:
The number 109 fits into 773 7 times, leaving a remainder of 10.
Write down 7 as next digit of the result. 
Result so far: 7.0
Deduct 763 from 773 and we're left with 10.
Bring next digit (8) of the dividend behind the 10 and repeat the process: 108 / 109

Step 4:
If we divide 108 by 109, we get 0 and a remainder of 108.
Record the quotient 0 as the next digit in the result. 
Result so far: 70.0
Subtract 0 from 108 to get 108.
Take the next digit (0) from the dividend and append it to 108, then repeat: 1080 / 109

Step 5:
If we divide 1080 by 109, we get 9 and a remainder of 99.
Use 9 as the next digit of our solution. 
Result so far: 709.0
The remainder is 99 after subtracting 981 from 1080.
Grab the next digit (5) from the dividend, add it to 99, then carry on: 995 / 109

Let's proceed to step 6:
The number 109 fits into 995 9 times, leaving a remainder of 14.
Write down 9 as next digit of the result. 
Result so far: 7099.0
If we subtract 981 from 995, we get 14.
Append the next digit (6) from the dividend to 14 and continue with: 146 / 109

Moving on to step 7:
109 goes into 146 1 times with a remainder of 37.
The next digit of our result is 1. 
Result so far: 70991.0
If we take 109 away from 146, we end up with 37.
Bring next digit (9) of the dividend behind the 37 and repeat the process: 379 / 109

Going ahead to step 8:
379 divided by 109 is 3 with a remainder of 52.
The next digit of our result is 3. 
Result so far: 709913.0
Subtract 327 from 379 to get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Moving on to step 9:
When dividing 520 by 109, we get 4 with a remainder of 84.
The next digit of our result is 4. 
Result so far: 709913.4
The remainder is 84 after subtracting 436 from 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Going ahead to step 10:
If we divide 840 by 109, we get 7 and a remainder of 77.
The number 7 becomes the next digit in our result. 
Result so far: 709913.47
Deduct 763 from 840 and we're left with 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

Advancing to step 11:
770 divided by 109 is 7 with a remainder of 7.
The number 7 becomes the next digit in our result. 
Result so far: 709913.477
If we subtract 763 from 770, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Our division results in 709913.477 with a remaining 0.0007.