644514 divided by 91 
Our goal is to divide 644514 by 91.

Step 1:
91 goes into 6 0 times with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 91

Step 2:
64 divided by 91 is 0 with a remainder of 64.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 64 after subtracting 0 from 64.
Take the next digit (4) from the dividend and append it to 64, then repeat: 644 / 91

Advancing to step 3:
644 divided by 91 is 7 with a remainder of 7.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
Subtracting 637 from 644 leaves us with 7.
Fetch the next digit (5) from the dividend, attach it to 7 and continue: 75 / 91

Let's proceed to step 4:
91 goes into 75 0 times with a remainder of 75.
Write down 0 as next digit of the result. 
Result so far: 70.0
The remainder is 75 after subtracting 0 from 75.
Fetch the next digit (1) from the dividend, attach it to 75 and continue: 751 / 91

Step 5:
91 goes into 751 8 times with a remainder of 23.
Record the quotient 8 as the next digit in the result. 
Result so far: 708.0
Subtract 728 from 751 to get 23.
Include the next digit (4) from the dividend after 23, then repeat: 234 / 91

Let's proceed to step 6:
91 can be fit into 234 2 times, resulting in a remainder of 52.
Put 2 as the next digit of the answer. 
Result so far: 7082.0
If we subtract 182 from 234, we get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Going ahead to step 7:
The number 91 fits into 520 5 times, leaving a remainder of 65.
Write down 5 as next digit of the result. 
Result so far: 7082.5
Subtract 455 from 520 to get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Advancing to step 8:
The number 91 fits into 650 7 times, leaving a remainder of 13.
Put 7 as the next digit of the answer. 
Result so far: 7082.57
If we subtract 637 from 650, we get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Moving on to step 9:
The number 91 fits into 130 1 times, leaving a remainder of 39.
Put 1 as the next digit of the answer. 
Result so far: 7082.571
Deduct 91 from 130 and we're left with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Going ahead to step 10:
390 divided by 91 is 4 with a remainder of 26.
Record the quotient 4 as the next digit in the result. 
Result so far: 7082.5714
Subtract 364 from 390 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Going ahead to step 11:
If we divide 260 by 91, we get 2 and a remainder of 78.
The next digit of our result is 2. 
Result so far: 7082.57142
If we subtract 182 from 260, we 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.

Moving on to step 12:
The number 91 fits into 780 8 times, leaving a remainder of 52.
Write down 8 as next digit of the result. 
Result so far: 7082.571428
Subtract 728 from 780 to get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Going ahead to step 13:
91 can be fit into 520 5 times, resulting in a remainder of 65.
Record the quotient 5 as the next digit in the result. 
Result so far: 7082.5714285
Subtract 455 from 520 to get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Moving on to step 14:
650 divided by 91 is 7 with a remainder of 13.
Record the quotient 7 as the next digit in the result. 
Result so far: 7082.57142857
If we subtract 637 from 650, we get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

After the division, we end up with 7082.57142857 and a remainder of 1.3e-08.