We look at the division of 77572513 by 561 
We're looking to find how many times 561 goes into 77572513.

Let's proceed to step 1:
The number 561 fits into 7 0 times, leaving a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Bring next digit (7) of the dividend behind the 7 and repeat the process: 77 / 561

Let's proceed to step 2:
561 can be fit into 77 0 times, resulting in a remainder of 77.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 77, we get 77.
Take the next digit (5) from the dividend and append it to 77, then repeat: 775 / 561

Moving on to step 3:
775 divided by 561 is 1 with a remainder of 214.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 561 from 775 leaves us with 214.
Take the next digit (7) from the dividend and append it to 214, then repeat: 2147 / 561

Let's proceed to step 4:
If we divide 2147 by 561, we get 3 and a remainder of 464.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
If we take 1683 away from 2147, we end up with 464.
Bring next digit (2) of the dividend behind the 464 and repeat the process: 4642 / 561

Going ahead to step 5:
If we divide 4642 by 561, we get 8 and a remainder of 154.
Put 8 as the next digit of the answer. 
Result so far: 138.0
Deduct 4488 from 4642 and we're left with 154.
Grab the next digit (5) from the dividend, add it to 154, then carry on: 1545 / 561

On to step 6:
561 goes into 1545 2 times with a remainder of 423.
Write down 2 as next digit of the result. 
Result so far: 1382.0
If we take 1122 away from 1545, we end up with 423.
Fetch the next digit (1) from the dividend, attach it to 423 and continue: 4231 / 561

Let's proceed to step 7:
561 goes into 4231 7 times with a remainder of 304.
The next digit of our result is 7. 
Result so far: 13827.0
Subtract 3927 from 4231 to get 304.
Append the next digit (3) from the dividend to 304 and continue with: 3043 / 561

Advancing to step 8:
3043 divided by 561 is 5 with a remainder of 238.
Put 5 as the next digit of the answer. 
Result so far: 138275.0
The remainder is 238 after subtracting 2805 from 3043.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

On to step 9:
The number 561 fits into 2380 4 times, leaving a remainder of 136.
Use 4 as the next digit of our solution. 
Result so far: 138275.4
If we subtract 2244 from 2380, we get 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

On to step 10:
1360 divided by 561 is 2 with a remainder of 238.
Record the quotient 2 as the next digit in the result. 
Result so far: 138275.42
Deduct 1122 from 1360 and we're left with 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

Moving on to step 11:
When dividing 2380 by 561, we get 4 with a remainder of 136.
Write down 4 as next digit of the result. 
Result so far: 138275.424
Subtracting 2244 from 2380 leaves us with 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

On to step 12:
The number 561 fits into 1360 2 times, leaving a remainder of 238.
Record the quotient 2 as the next digit in the result. 
Result so far: 138275.4242
Subtract 1122 from 1360 to get 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

Moving on to step 13:
The number 561 fits into 2380 4 times, leaving a remainder of 136.
The number 4 becomes the next digit in our result. 
Result so far: 138275.42424
Subtract 2244 from 2380 to get 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

Going ahead to step 14:
When dividing 1360 by 561, we get 2 with a remainder of 238.
Use 2 as the next digit of our solution. 
Result so far: 138275.424242
If we subtract 1122 from 1360, we get 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

Going ahead to step 15:
561 can be fit into 2380 4 times, resulting in a remainder of 136.
Record the quotient 4 as the next digit in the result. 
Result so far: 138275.4242424
Subtracting 2244 from 2380 leaves us with 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

Moving on to step 16:
1360 divided by 561 is 2 with a remainder of 238.
The number 2 becomes the next digit in our result. 
Result so far: 138275.42424242
If we take 1122 away from 1360, we end up with 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

Our division results in 138275.42424242 with a remaining 2.38e-07.