89423478 ÷ 641 
We're looking to find how many times 641 goes into 89423478.

On to step 1:
The number 641 fits into 8 0 times, leaving a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Include the next digit (9) from the dividend after 8, then repeat: 89 / 641

Going ahead to step 2:
641 goes into 89 0 times with a remainder of 89.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 89 after subtracting 0 from 89.
Fetch the next digit (4) from the dividend, attach it to 89 and continue: 894 / 641

Going ahead to step 3:
The number 641 fits into 894 1 times, leaving a remainder of 253.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 641 from 894 leaves us with 253.
Include the next digit (2) from the dividend after 253, then repeat: 2532 / 641

Going ahead to step 4:
When dividing 2532 by 641, we get 3 with a remainder of 609.
Put 3 as the next digit of the answer. 
Result so far: 13.0
Deduct 1923 from 2532 and we're left with 609.
Include the next digit (3) from the dividend after 609, then repeat: 6093 / 641

On to step 5:
641 can be fit into 6093 9 times, resulting in a remainder of 324.
The number 9 becomes the next digit in our result. 
Result so far: 139.0
Deduct 5769 from 6093 and we're left with 324.
Grab the next digit (4) from the dividend, add it to 324, then carry on: 3244 / 641

On to step 6:
If we divide 3244 by 641, we get 5 and a remainder of 39.
The number 5 becomes the next digit in our result. 
Result so far: 1395.0
Subtract 3205 from 3244 to get 39.
Bring next digit (7) of the dividend behind the 39 and repeat the process: 397 / 641

Going ahead to step 7:
641 goes into 397 0 times with a remainder of 397.
The number 0 becomes the next digit in our result. 
Result so far: 13950.0
The remainder is 397 after subtracting 0 from 397.
Include the next digit (8) from the dividend after 397, then repeat: 3978 / 641

Going ahead to step 8:
When dividing 3978 by 641, we get 6 with a remainder of 132.
The number 6 becomes the next digit in our result. 
Result so far: 139506.0
Deduct 3846 from 3978 and we're left with 132.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

Step 9:
The number 641 fits into 1320 2 times, leaving a remainder of 38.
Put 2 as the next digit of the answer. 
Result so far: 139506.2
The remainder is 38 after subtracting 1282 from 1320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Going ahead to step 10:
If we divide 380 by 641, we get 0 and a remainder of 380.
The next digit of our result is 0. 
Result so far: 139506.2
If we take 0 away from 380, we end up with 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Let's proceed to step 11:
The number 641 fits into 3800 5 times, leaving a remainder of 595.
The next digit of our result is 5. 
Result so far: 139506.205
Deduct 3205 from 3800 and we're left with 595.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5950, and continue the process.

Going ahead to step 12:
The number 641 fits into 5950 9 times, leaving a remainder of 181.
The next digit of our result is 9. 
Result so far: 139506.2059
The remainder is 181 after subtracting 5769 from 5950.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1810, and continue the process.

Advancing to step 13:
If we divide 1810 by 641, we get 2 and a remainder of 528.
Put 2 as the next digit of the answer. 
Result so far: 139506.20592
If we subtract 1282 from 1810, we get 528.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5280, and continue the process.

Going ahead to step 14:
When dividing 5280 by 641, we get 8 with a remainder of 152.
The next digit of our result is 8. 
Result so far: 139506.205928
If we subtract 5128 from 5280, we get 152.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

Going ahead to step 15:
641 can be fit into 1520 2 times, resulting in a remainder of 238.
Put 2 as the next digit of the answer. 
Result so far: 139506.2059282
Deduct 1282 from 1520 and we're left with 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

Moving on to step 16:
2380 divided by 641 is 3 with a remainder of 457.
Use 3 as the next digit of our solution. 
Result so far: 139506.20592823
The remainder is 457 after subtracting 1923 from 2380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4570, and continue the process.

Our division results in 139506.20592823 with a remaining 4.57e-07.