57896540 ÷ 645 
We want to divide 57896540 by 645.

Let's proceed to step 1:
645 goes into 5 0 times with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Take the next digit (7) from the dividend and append it to 5, then repeat: 57 / 645

Advancing to step 2:
645 can be fit into 57 0 times, resulting in a remainder of 57.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 57, we end up with 57.
Bring next digit (8) of the dividend behind the 57 and repeat the process: 578 / 645

Going ahead to step 3:
645 can be fit into 578 0 times, resulting in a remainder of 578.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 578 leaves us with 578.
Grab the next digit (9) from the dividend, add it to 578, then carry on: 5789 / 645

Advancing to step 4:
If we divide 5789 by 645, we get 8 and a remainder of 629.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Subtracting 5160 from 5789 leaves us with 629.
Grab the next digit (6) from the dividend, add it to 629, then carry on: 6296 / 645

Advancing to step 5:
The number 645 fits into 6296 9 times, leaving a remainder of 491.
Write down 9 as next digit of the result. 
Result so far: 89.0
If we subtract 5805 from 6296, we get 491.
Take the next digit (5) from the dividend and append it to 491, then repeat: 4915 / 645

Step 6:
When dividing 4915 by 645, we get 7 with a remainder of 400.
The number 7 becomes the next digit in our result. 
Result so far: 897.0
Subtract 4515 from 4915 to get 400.
Append the next digit (4) from the dividend to 400 and continue with: 4004 / 645

Let's proceed to step 7:
If we divide 4004 by 645, we get 6 and a remainder of 134.
Record the quotient 6 as the next digit in the result. 
Result so far: 8976.0
If we take 3870 away from 4004, we end up with 134.
Append the next digit (0) from the dividend to 134 and continue with: 1340 / 645

Advancing to step 8:
If we divide 1340 by 645, we get 2 and a remainder of 50.
The number 2 becomes the next digit in our result. 
Result so far: 89762.0
The remainder is 50 after subtracting 1290 from 1340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 9:
When dividing 500 by 645, we get 0 with a remainder of 500.
Put 0 as the next digit of the answer. 
Result so far: 89762.0
Subtracting 0 from 500 leaves us with 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

Advancing to step 10:
When dividing 5000 by 645, we get 7 with a remainder of 485.
Record the quotient 7 as the next digit in the result. 
Result so far: 89762.07
If we take 4515 away from 5000, we end up with 485.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4850, and continue the process.

Step 11:
645 goes into 4850 7 times with a remainder of 335.
The next digit of our result is 7. 
Result so far: 89762.077
Subtracting 4515 from 4850 leaves us with 335.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3350, and continue the process.

The quotient of the division is 89762.077, and the remainder is 0.0335.