We're dividing 97071415 by 644 
Our goal is to divide 97071415 by 644.

On to step 1:
When dividing 9 by 644, we get 0 with a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Append the next digit (7) from the dividend to 9 and continue with: 97 / 644

On to step 2:
644 can be fit into 97 0 times, resulting in a remainder of 97.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 97, we get 97.
Bring next digit (0) of the dividend behind the 97 and repeat the process: 970 / 644

Moving on to step 3:
If we divide 970 by 644, we get 1 and a remainder of 326.
The next digit of our result is 1. 
Result so far: 1.0
If we take 644 away from 970, we end up with 326.
Include the next digit (7) from the dividend after 326, then repeat: 3267 / 644

Let's proceed to step 4:
644 goes into 3267 5 times with a remainder of 47.
Put 5 as the next digit of the answer. 
Result so far: 15.0
Subtract 3220 from 3267 to get 47.
Append the next digit (1) from the dividend to 47 and continue with: 471 / 644

On to step 5:
If we divide 471 by 644, we get 0 and a remainder of 471.
The number 0 becomes the next digit in our result. 
Result so far: 150.0
The remainder is 471 after subtracting 0 from 471.
Take the next digit (4) from the dividend and append it to 471, then repeat: 4714 / 644

Let's proceed to step 6:
644 goes into 4714 7 times with a remainder of 206.
The next digit of our result is 7. 
Result so far: 1507.0
If we subtract 4508 from 4714, we get 206.
Take the next digit (1) from the dividend and append it to 206, then repeat: 2061 / 644

Advancing to step 7:
If we divide 2061 by 644, we get 3 and a remainder of 129.
Record the quotient 3 as the next digit in the result. 
Result so far: 15073.0
Deduct 1932 from 2061 and we're left with 129.
Append the next digit (5) from the dividend to 129 and continue with: 1295 / 644

Step 8:
If we divide 1295 by 644, we get 2 and a remainder of 7.
Use 2 as the next digit of our solution. 
Result so far: 150732.0
If we subtract 1288 from 1295, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 9:
644 goes into 70 0 times with a remainder of 70.
Record the quotient 0 as the next digit in the result. 
Result so far: 150732.0
Subtracting 0 from 70 leaves us with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Going ahead to step 10:
700 divided by 644 is 1 with a remainder of 56.
Write down 1 as next digit of the result. 
Result so far: 150732.01
If we take 644 away from 700, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Moving on to step 11:
644 goes into 560 0 times with a remainder of 560.
Write down 0 as next digit of the result. 
Result so far: 150732.01
Subtract 0 from 560 to get 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

Let's proceed to step 12:
644 goes into 5600 8 times with a remainder of 448.
The number 8 becomes the next digit in our result. 
Result so far: 150732.0108
Subtracting 5152 from 5600 leaves us with 448.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4480, and continue the process.

Step 13:
When dividing 4480 by 644, we get 6 with a remainder of 616.
The number 6 becomes the next digit in our result. 
Result so far: 150732.01086
Subtracting 3864 from 4480 leaves us with 616.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6160, and continue the process.

On to step 14:
The number 644 fits into 6160 9 times, leaving a remainder of 364.
The next digit of our result is 9. 
Result so far: 150732.010869
Subtracting 5796 from 6160 leaves us with 364.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3640, and continue the process.

Let's proceed to step 15:
When dividing 3640 by 644, we get 5 with a remainder of 420.
Write down 5 as next digit of the result. 
Result so far: 150732.0108695
If we subtract 3220 from 3640, we get 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Going ahead to step 16:
644 can be fit into 4200 6 times, resulting in a remainder of 336.
Record the quotient 6 as the next digit in the result. 
Result so far: 150732.01086956
Subtracting 3864 from 4200 leaves us with 336.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3360, and continue the process.

In conclusion, the division gives 150732.01086956 with a balance of 3.36e-07.