64939109 ÷ 409 
We're looking to find how many times 409 goes into 64939109.

Going ahead to step 1:
409 goes into 6 0 times with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Grab the next digit (4) from the dividend, add it to 6, then carry on: 64 / 409

Let's proceed to step 2:
The number 409 fits into 64 0 times, leaving a remainder of 64.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 64 after subtracting 0 from 64.
Append the next digit (9) from the dividend to 64 and continue with: 649 / 409

Advancing to step 3:
When dividing 649 by 409, we get 1 with a remainder of 240.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 409 away from 649, we end up with 240.
Include the next digit (3) from the dividend after 240, then repeat: 2403 / 409

Let's proceed to step 4:
When dividing 2403 by 409, we get 5 with a remainder of 358.
The next digit of our result is 5. 
Result so far: 15.0
If we take 2045 away from 2403, we end up with 358.
Fetch the next digit (9) from the dividend, attach it to 358 and continue: 3589 / 409

Going ahead to step 5:
409 can be fit into 3589 8 times, resulting in a remainder of 317.
Use 8 as the next digit of our solution. 
Result so far: 158.0
If we subtract 3272 from 3589, we get 317.
Grab the next digit (1) from the dividend, add it to 317, then carry on: 3171 / 409

On to step 6:
409 goes into 3171 7 times with a remainder of 308.
Use 7 as the next digit of our solution. 
Result so far: 1587.0
Deduct 2863 from 3171 and we're left with 308.
Fetch the next digit (0) from the dividend, attach it to 308 and continue: 3080 / 409

Advancing to step 7:
409 can be fit into 3080 7 times, resulting in a remainder of 217.
The next digit of our result is 7. 
Result so far: 15877.0
Deduct 2863 from 3080 and we're left with 217.
Append the next digit (9) from the dividend to 217 and continue with: 2179 / 409

Going ahead to step 8:
409 goes into 2179 5 times with a remainder of 134.
Put 5 as the next digit of the answer. 
Result so far: 158775.0
Deduct 2045 from 2179 and we're left with 134.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1340, and continue the process.

On to step 9:
409 goes into 1340 3 times with a remainder of 113.
Use 3 as the next digit of our solution. 
Result so far: 158775.3
If we take 1227 away from 1340, we end up with 113.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1130, and continue the process.

Step 10:
409 can be fit into 1130 2 times, resulting in a remainder of 312.
The number 2 becomes the next digit in our result. 
Result so far: 158775.32
Subtract 818 from 1130 to get 312.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3120, and continue the process.

Step 11:
The number 409 fits into 3120 7 times, leaving a remainder of 257.
Use 7 as the next digit of our solution. 
Result so far: 158775.327
Deduct 2863 from 3120 and we're left with 257.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2570, and continue the process.

Let's proceed to step 12:
409 goes into 2570 6 times with a remainder of 116.
Record the quotient 6 as the next digit in the result. 
Result so far: 158775.3276
Subtracting 2454 from 2570 leaves us with 116.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

On to step 13:
When dividing 1160 by 409, we get 2 with a remainder of 342.
Record the quotient 2 as the next digit in the result. 
Result so far: 158775.32762
If we take 818 away from 1160, we end up with 342.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3420, and continue the process.

Going ahead to step 14:
409 can be fit into 3420 8 times, resulting in a remainder of 148.
Write down 8 as next digit of the result. 
Result so far: 158775.327628
The remainder is 148 after subtracting 3272 from 3420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

Advancing to step 15:
When dividing 1480 by 409, we get 3 with a remainder of 253.
Record the quotient 3 as the next digit in the result. 
Result so far: 158775.3276283
The remainder is 253 after subtracting 1227 from 1480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2530, and continue the process.

Moving on to step 16:
If we divide 2530 by 409, we get 6 and a remainder of 76.
Use 6 as the next digit of our solution. 
Result so far: 158775.32762836
If we subtract 2454 from 2530, we get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Our division results in 158775.32762836 with a remaining 7.6e-08.