61915008 ÷ 770 
We're looking to find how many times 770 goes into 61915008.

On to step 1:
When dividing 6 by 770, we get 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Include the next digit (1) from the dividend after 6, then repeat: 61 / 770

Advancing to step 2:
The number 770 fits into 61 0 times, leaving a remainder of 61.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 61 after subtracting 0 from 61.
Include the next digit (9) from the dividend after 61, then repeat: 619 / 770

Let's proceed to step 3:
770 goes into 619 0 times with a remainder of 619.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 619 and we're left with 619.
Bring next digit (1) of the dividend behind the 619 and repeat the process: 6191 / 770

Advancing to step 4:
770 goes into 6191 8 times with a remainder of 31.
Write down 8 as next digit of the result. 
Result so far: 8.0
If we subtract 6160 from 6191, we get 31.
Append the next digit (5) from the dividend to 31 and continue with: 315 / 770

On to step 5:
770 goes into 315 0 times with a remainder of 315.
Record the quotient 0 as the next digit in the result. 
Result so far: 80.0
Subtracting 0 from 315 leaves us with 315.
Fetch the next digit (0) from the dividend, attach it to 315 and continue: 3150 / 770

On to step 6:
770 goes into 3150 4 times with a remainder of 70.
Write down 4 as next digit of the result. 
Result so far: 804.0
Subtract 3080 from 3150 to get 70.
Bring next digit (0) of the dividend behind the 70 and repeat the process: 700 / 770

Let's proceed to step 7:
700 divided by 770 is 0 with a remainder of 700.
The next digit of our result is 0. 
Result so far: 8040.0
The remainder is 700 after subtracting 0 from 700.
Append the next digit (8) from the dividend to 700 and continue with: 7008 / 770

Step 8:
If we divide 7008 by 770, we get 9 and a remainder of 78.
The number 9 becomes the next digit in our result. 
Result so far: 80409.0
Subtract 6930 from 7008 to get 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Let's proceed to step 9:
If we divide 780 by 770, we get 1 and a remainder of 10.
The number 1 becomes the next digit in our result. 
Result so far: 80409.1
If we take 770 away from 780, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 10:
770 can be fit into 100 0 times, resulting in a remainder of 100.
Record the quotient 0 as the next digit in the result. 
Result so far: 80409.1
Subtract 0 from 100 to get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Step 11:
If we divide 1000 by 770, we get 1 and a remainder of 230.
The next digit of our result is 1. 
Result so far: 80409.101
Subtracting 770 from 1000 leaves us with 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Let's proceed to step 12:
If we divide 2300 by 770, we get 2 and a remainder of 760.
The number 2 becomes the next digit in our result. 
Result so far: 80409.1012
Subtracting 1540 from 2300 leaves us with 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7600, and continue the process.

Moving on to step 13:
When dividing 7600 by 770, we get 9 with a remainder of 670.
Write down 9 as next digit of the result. 
Result so far: 80409.10129
Subtracting 6930 from 7600 leaves us with 670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6700, and continue the process.

Let's proceed to step 14:
6700 divided by 770 is 8 with a remainder of 540.
Use 8 as the next digit of our solution. 
Result so far: 80409.101298
The remainder is 540 after subtracting 6160 from 6700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

Going ahead to step 15:
5400 divided by 770 is 7 with a remainder of 10.
Record the quotient 7 as the next digit in the result. 
Result so far: 80409.1012987
If we take 5390 away from 5400, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 16:
If we divide 100 by 770, we get 0 and a remainder of 100.
Put 0 as the next digit of the answer. 
Result so far: 80409.1012987
The remainder is 100 after subtracting 0 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

The final outcome is 80409.1012987, with a leftover of 1e-07.