94845680 ÷ 644 
Let's see how many times 644 fits into 94845680.

Going ahead to step 1:
The number 644 fits into 9 0 times, leaving a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Grab the next digit (4) from the dividend, add it to 9, then carry on: 94 / 644

Going ahead to step 2:
When dividing 94 by 644, we get 0 with a remainder of 94.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 94 leaves us with 94.
Take the next digit (8) from the dividend and append it to 94, then repeat: 948 / 644

On to step 3:
948 divided by 644 is 1 with a remainder of 304.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 644 from 948 and we're left with 304.
Fetch the next digit (4) from the dividend, attach it to 304 and continue: 3044 / 644

Step 4:
When dividing 3044 by 644, we get 4 with a remainder of 468.
Write down 4 as next digit of the result. 
Result so far: 14.0
If we take 2576 away from 3044, we end up with 468.
Take the next digit (5) from the dividend and append it to 468, then repeat: 4685 / 644

Going ahead to step 5:
644 can be fit into 4685 7 times, resulting in a remainder of 177.
Write down 7 as next digit of the result. 
Result so far: 147.0
Subtract 4508 from 4685 to get 177.
Bring next digit (6) of the dividend behind the 177 and repeat the process: 1776 / 644

Advancing to step 6:
The number 644 fits into 1776 2 times, leaving a remainder of 488.
Record the quotient 2 as the next digit in the result. 
Result so far: 1472.0
The remainder is 488 after subtracting 1288 from 1776.
Fetch the next digit (8) from the dividend, attach it to 488 and continue: 4888 / 644

Let's proceed to step 7:
If we divide 4888 by 644, we get 7 and a remainder of 380.
Record the quotient 7 as the next digit in the result. 
Result so far: 14727.0
The remainder is 380 after subtracting 4508 from 4888.
Take the next digit (0) from the dividend and append it to 380, then repeat: 3800 / 644

Let's proceed to step 8:
3800 divided by 644 is 5 with a remainder of 580.
The next digit of our result is 5. 
Result so far: 147275.0
The remainder is 580 after subtracting 3220 from 3800.
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 9:
When dividing 5800 by 644, we get 9 with a remainder of 4.
Record the quotient 9 as the next digit in the result. 
Result so far: 147275.9
Subtracting 5796 from 5800 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 10:
644 goes into 40 0 times with a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 147275.9
The remainder is 40 after subtracting 0 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 11:
If we divide 400 by 644, we get 0 and a remainder of 400.
Write down 0 as next digit of the result. 
Result so far: 147275.9
Subtracting 0 from 400 leaves us with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

After the division, we end up with 147275.9 and a remainder of 0.04.