We're dividing 97077731 by 644 
Our goal is to divide 97077731 by 644.

Moving on to step 1:
644 goes into 9 0 times with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Take the next digit (7) from the dividend and append it to 9, then repeat: 97 / 644

Going ahead to step 2:
644 goes into 97 0 times with a remainder of 97.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 97, we end up with 97.
Grab the next digit (0) from the dividend, add it to 97, then carry on: 970 / 644

Advancing to step 3:
644 goes into 970 1 times with a remainder of 326.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 644 from 970 leaves us with 326.
Append the next digit (7) from the dividend to 326 and continue with: 3267 / 644

On to step 4:
When dividing 3267 by 644, we get 5 with a remainder of 47.
Write down 5 as next digit of the result. 
Result so far: 15.0
Deduct 3220 from 3267 and we're left with 47.
Include the next digit (7) from the dividend after 47, then repeat: 477 / 644

Moving on to step 5:
If we divide 477 by 644, we get 0 and a remainder of 477.
The number 0 becomes the next digit in our result. 
Result so far: 150.0
Deduct 0 from 477 and we're left with 477.
Append the next digit (7) from the dividend to 477 and continue with: 4777 / 644

Going ahead to step 6:
644 can be fit into 4777 7 times, resulting in a remainder of 269.
Use 7 as the next digit of our solution. 
Result so far: 1507.0
If we take 4508 away from 4777, we end up with 269.
Take the next digit (3) from the dividend and append it to 269, then repeat: 2693 / 644

Moving on to step 7:
The number 644 fits into 2693 4 times, leaving a remainder of 117.
Record the quotient 4 as the next digit in the result. 
Result so far: 15074.0
If we take 2576 away from 2693, we end up with 117.
Take the next digit (1) from the dividend and append it to 117, then repeat: 1171 / 644

Moving on to step 8:
1171 divided by 644 is 1 with a remainder of 527.
The number 1 becomes the next digit in our result. 
Result so far: 150741.0
Subtract 644 from 1171 to get 527.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5270, and continue the process.

On to step 9:
When dividing 5270 by 644, we get 8 with a remainder of 118.
Use 8 as the next digit of our solution. 
Result so far: 150741.8
If we take 5152 away from 5270, we end up with 118.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1180, and continue the process.

Let's proceed to step 10:
The number 644 fits into 1180 1 times, leaving a remainder of 536.
Write down 1 as next digit of the result. 
Result so far: 150741.81
If we subtract 644 from 1180, we get 536.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5360, and continue the process.

Let's proceed to step 11:
644 can be fit into 5360 8 times, resulting in a remainder of 208.
Write down 8 as next digit of the result. 
Result so far: 150741.818
If we take 5152 away from 5360, we end up with 208.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

Moving on to step 12:
The number 644 fits into 2080 3 times, leaving a remainder of 148.
Use 3 as the next digit of our solution. 
Result so far: 150741.8183
Deduct 1932 from 2080 and we're left with 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

Going ahead to step 13:
When dividing 1480 by 644, we get 2 with a remainder of 192.
Record the quotient 2 as the next digit in the result. 
Result so far: 150741.81832
The remainder is 192 after subtracting 1288 from 1480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

On to step 14:
The number 644 fits into 1920 2 times, leaving a remainder of 632.
Use 2 as the next digit of our solution. 
Result so far: 150741.818322
If we subtract 1288 from 1920, we get 632.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6320, and continue the process.

Our division results in 150741.818322 with a remaining 6.32e-05.