We're dividing 89695387 by 646 
We want to divide 89695387 by 646.

Step 1:
When dividing 8 by 646, we get 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Fetch the next digit (9) from the dividend, attach it to 8 and continue: 89 / 646

Going ahead to step 2:
646 can be fit into 89 0 times, resulting in a remainder of 89.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 89 leaves us with 89.
Fetch the next digit (6) from the dividend, attach it to 89 and continue: 896 / 646

Moving on to step 3:
646 goes into 896 1 times with a remainder of 250.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 646 from 896 and we're left with 250.
Append the next digit (9) from the dividend to 250 and continue with: 2509 / 646

Advancing to step 4:
The number 646 fits into 2509 3 times, leaving a remainder of 571.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
Subtracting 1938 from 2509 leaves us with 571.
Include the next digit (5) from the dividend after 571, then repeat: 5715 / 646

Advancing to step 5:
When dividing 5715 by 646, we get 8 with a remainder of 547.
Put 8 as the next digit of the answer. 
Result so far: 138.0
Deduct 5168 from 5715 and we're left with 547.
Grab the next digit (3) from the dividend, add it to 547, then carry on: 5473 / 646

Step 6:
The number 646 fits into 5473 8 times, leaving a remainder of 305.
Put 8 as the next digit of the answer. 
Result so far: 1388.0
Subtracting 5168 from 5473 leaves us with 305.
Grab the next digit (8) from the dividend, add it to 305, then carry on: 3058 / 646

Step 7:
If we divide 3058 by 646, we get 4 and a remainder of 474.
Write down 4 as next digit of the result. 
Result so far: 13884.0
The remainder is 474 after subtracting 2584 from 3058.
Grab the next digit (7) from the dividend, add it to 474, then carry on: 4747 / 646

Step 8:
If we divide 4747 by 646, we get 7 and a remainder of 225.
The next digit of our result is 7. 
Result so far: 138847.0
Subtracting 4522 from 4747 leaves us with 225.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2250, and continue the process.

Step 9:
646 can be fit into 2250 3 times, resulting in a remainder of 312.
The number 3 becomes the next digit in our result. 
Result so far: 138847.3
Deduct 1938 from 2250 and we're left with 312.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3120, and continue the process.

Let's proceed to step 10:
If we divide 3120 by 646, we get 4 and a remainder of 536.
Write down 4 as next digit of the result. 
Result so far: 138847.34
Deduct 2584 from 3120 and we're left with 536.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5360, and continue the process.

Step 11:
The number 646 fits into 5360 8 times, leaving a remainder of 192.
Put 8 as the next digit of the answer. 
Result so far: 138847.348
Deduct 5168 from 5360 and we're left with 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

Advancing to step 12:
646 can be fit into 1920 2 times, resulting in a remainder of 628.
The next digit of our result is 2. 
Result so far: 138847.3482
If we subtract 1292 from 1920, we get 628.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6280, and continue the process.

Moving on to step 13:
When dividing 6280 by 646, we get 9 with a remainder of 466.
Write down 9 as next digit of the result. 
Result so far: 138847.34829
The remainder is 466 after subtracting 5814 from 6280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4660, and continue the process.

Moving on to step 14:
The number 646 fits into 4660 7 times, leaving a remainder of 138.
Record the quotient 7 as the next digit in the result. 
Result so far: 138847.348297
Subtract 4522 from 4660 to get 138.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1380, and continue the process.

Moving on to step 15:
646 goes into 1380 2 times with a remainder of 88.
Put 2 as the next digit of the answer. 
Result so far: 138847.3482972
Deduct 1292 from 1380 and we're left with 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

Going ahead to step 16:
646 can be fit into 880 1 times, resulting in a remainder of 234.
The number 1 becomes the next digit in our result. 
Result so far: 138847.34829721
If we take 646 away from 880, we end up with 234.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2340, and continue the process.

The final outcome is 138847.34829721, with a leftover of 2.34e-07.