64986251 ÷ 424 
Our goal is to divide 64986251 by 424.

Moving on to step 1:
When dividing 6 by 424, we get 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Bring next digit (4) of the dividend behind the 6 and repeat the process: 64 / 424

Let's proceed to step 2:
If we divide 64 by 424, we get 0 and a remainder of 64.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 64 and we're left with 64.
Grab the next digit (9) from the dividend, add it to 64, then carry on: 649 / 424

Step 3:
If we divide 649 by 424, we get 1 and a remainder of 225.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 225 after subtracting 424 from 649.
Grab the next digit (8) from the dividend, add it to 225, then carry on: 2258 / 424

Advancing to step 4:
The number 424 fits into 2258 5 times, leaving a remainder of 138.
Use 5 as the next digit of our solution. 
Result so far: 15.0
The remainder is 138 after subtracting 2120 from 2258.
Grab the next digit (6) from the dividend, add it to 138, then carry on: 1386 / 424

Moving on to step 5:
424 can be fit into 1386 3 times, resulting in a remainder of 114.
Put 3 as the next digit of the answer. 
Result so far: 153.0
Deduct 1272 from 1386 and we're left with 114.
Append the next digit (2) from the dividend to 114 and continue with: 1142 / 424

Step 6:
1142 divided by 424 is 2 with a remainder of 294.
Record the quotient 2 as the next digit in the result. 
Result so far: 1532.0
The remainder is 294 after subtracting 848 from 1142.
Take the next digit (5) from the dividend and append it to 294, then repeat: 2945 / 424

On to step 7:
424 can be fit into 2945 6 times, resulting in a remainder of 401.
Use 6 as the next digit of our solution. 
Result so far: 15326.0
Subtracting 2544 from 2945 leaves us with 401.
Include the next digit (1) from the dividend after 401, then repeat: 4011 / 424

Moving on to step 8:
If we divide 4011 by 424, we get 9 and a remainder of 195.
Write down 9 as next digit of the result. 
Result so far: 153269.0
If we take 3816 away from 4011, we end up with 195.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1950, and continue the process.

Step 9:
424 goes into 1950 4 times with a remainder of 254.
The number 4 becomes the next digit in our result. 
Result so far: 153269.4
If we subtract 1696 from 1950, we get 254.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2540, and continue the process.

Step 10:
The number 424 fits into 2540 5 times, leaving a remainder of 420.
The number 5 becomes the next digit in our result. 
Result so far: 153269.45
Subtracting 2120 from 2540 leaves us with 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

On to step 11:
4200 divided by 424 is 9 with a remainder of 384.
Put 9 as the next digit of the answer. 
Result so far: 153269.459
The remainder is 384 after subtracting 3816 from 4200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3840, and continue the process.

On to step 12:
424 goes into 3840 9 times with a remainder of 24.
Record the quotient 9 as the next digit in the result. 
Result so far: 153269.4599
If we take 3816 away from 3840, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

In conclusion, the division gives 153269.4599 with a balance of 0.00024.