We're dividing 45886519 by 645 
We want to divide 45886519 by 645.

Advancing to step 1:
When dividing 4 by 645, we get 0 with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Grab the next digit (5) from the dividend, add it to 4, then carry on: 45 / 645

Let's proceed to step 2:
645 goes into 45 0 times with a remainder of 45.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 45 leaves us with 45.
Take the next digit (8) from the dividend and append it to 45, then repeat: 458 / 645

Going ahead to step 3:
458 divided by 645 is 0 with a remainder of 458.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 458 leaves us with 458.
Grab the next digit (8) from the dividend, add it to 458, then carry on: 4588 / 645

Moving on to step 4:
645 can be fit into 4588 7 times, resulting in a remainder of 73.
Write down 7 as next digit of the result. 
Result so far: 7.0
Subtract 4515 from 4588 to get 73.
Grab the next digit (6) from the dividend, add it to 73, then carry on: 736 / 645

Moving on to step 5:
If we divide 736 by 645, we get 1 and a remainder of 91.
Record the quotient 1 as the next digit in the result. 
Result so far: 71.0
The remainder is 91 after subtracting 645 from 736.
Grab the next digit (5) from the dividend, add it to 91, then carry on: 915 / 645

Let's proceed to step 6:
The number 645 fits into 915 1 times, leaving a remainder of 270.
Use 1 as the next digit of our solution. 
Result so far: 711.0
Subtracting 645 from 915 leaves us with 270.
Fetch the next digit (1) from the dividend, attach it to 270 and continue: 2701 / 645

Going ahead to step 7:
If we divide 2701 by 645, we get 4 and a remainder of 121.
Record the quotient 4 as the next digit in the result. 
Result so far: 7114.0
Subtracting 2580 from 2701 leaves us with 121.
Fetch the next digit (9) from the dividend, attach it to 121 and continue: 1219 / 645

Moving on to step 8:
The number 645 fits into 1219 1 times, leaving a remainder of 574.
The next digit of our result is 1. 
Result so far: 71141.0
The remainder is 574 after subtracting 645 from 1219.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5740, and continue the process.

Going ahead to step 9:
If we divide 5740 by 645, we get 8 and a remainder of 580.
Put 8 as the next digit of the answer. 
Result so far: 71141.8
The remainder is 580 after subtracting 5160 from 5740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5800, and continue the process.

Moving on to step 10:
If we divide 5800 by 645, we get 8 and a remainder of 640.
Put 8 as the next digit of the answer. 
Result so far: 71141.88
Deduct 5160 from 5800 and we're left with 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Our division results in 71141.88 with a remaining 0.64.