19159691 ÷ 77 
We want to figure out the number of times 19159691 can be divided by 77.

Moving on to step 1:
77 goes into 1 0 times with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Bring next digit (9) of the dividend behind the 1 and repeat the process: 19 / 77

On to step 2:
The number 77 fits into 19 0 times, leaving a remainder of 19.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 19, we end up with 19.
Bring next digit (1) of the dividend behind the 19 and repeat the process: 191 / 77

Let's proceed to step 3:
77 goes into 191 2 times with a remainder of 37.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we subtract 154 from 191, we get 37.
Take the next digit (5) from the dividend and append it to 37, then repeat: 375 / 77

Advancing to step 4:
When dividing 375 by 77, we get 4 with a remainder of 67.
Use 4 as the next digit of our solution. 
Result so far: 24.0
The remainder is 67 after subtracting 308 from 375.
Take the next digit (9) from the dividend and append it to 67, then repeat: 679 / 77

Moving on to step 5:
If we divide 679 by 77, we get 8 and a remainder of 63.
Write down 8 as next digit of the result. 
Result so far: 248.0
If we take 616 away from 679, we end up with 63.
Fetch the next digit (6) from the dividend, attach it to 63 and continue: 636 / 77

On to step 6:
77 goes into 636 8 times with a remainder of 20.
Write down 8 as next digit of the result. 
Result so far: 2488.0
The remainder is 20 after subtracting 616 from 636.
Take the next digit (9) from the dividend and append it to 20, then repeat: 209 / 77

Advancing to step 7:
77 can be fit into 209 2 times, resulting in a remainder of 55.
The next digit of our result is 2. 
Result so far: 24882.0
If we subtract 154 from 209, we get 55.
Take the next digit (1) from the dividend and append it to 55, then repeat: 551 / 77

Step 8:
77 can be fit into 551 7 times, resulting in a remainder of 12.
The number 7 becomes the next digit in our result. 
Result so far: 248827.0
If we subtract 539 from 551, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 9:
77 goes into 120 1 times with a remainder of 43.
The number 1 becomes the next digit in our result. 
Result so far: 248827.1
If we take 77 away from 120, we end up with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Let's proceed to step 10:
When dividing 430 by 77, we get 5 with a remainder of 45.
Put 5 as the next digit of the answer. 
Result so far: 248827.15
Subtracting 385 from 430 leaves us with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Moving on to step 11:
450 divided by 77 is 5 with a remainder of 65.
The number 5 becomes the next digit in our result. 
Result so far: 248827.155
Deduct 385 from 450 and we're left with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Our division results in 248827.155 with a remaining 0.0065.