61721459 ÷ 150 
We want to divide 61721459 by 150.

Advancing to step 1:
6 divided by 150 is 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Include the next digit (1) from the dividend after 6, then repeat: 61 / 150

Step 2:
The number 150 fits into 61 0 times, leaving a remainder of 61.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 61 and we're left with 61.
Take the next digit (7) from the dividend and append it to 61, then repeat: 617 / 150

Step 3:
150 can be fit into 617 4 times, resulting in a remainder of 17.
Write down 4 as next digit of the result. 
Result so far: 4.0
Deduct 600 from 617 and we're left with 17.
Bring next digit (2) of the dividend behind the 17 and repeat the process: 172 / 150

Step 4:
172 divided by 150 is 1 with a remainder of 22.
The number 1 becomes the next digit in our result. 
Result so far: 41.0
Subtracting 150 from 172 leaves us with 22.
Include the next digit (1) from the dividend after 22, then repeat: 221 / 150

Let's proceed to step 5:
The number 150 fits into 221 1 times, leaving a remainder of 71.
The next digit of our result is 1. 
Result so far: 411.0
Subtracting 150 from 221 leaves us with 71.
Bring next digit (4) of the dividend behind the 71 and repeat the process: 714 / 150

Step 6:
If we divide 714 by 150, we get 4 and a remainder of 114.
Write down 4 as next digit of the result. 
Result so far: 4114.0
If we take 600 away from 714, we end up with 114.
Include the next digit (5) from the dividend after 114, then repeat: 1145 / 150

Going ahead to step 7:
150 can be fit into 1145 7 times, resulting in a remainder of 95.
Write down 7 as next digit of the result. 
Result so far: 41147.0
The remainder is 95 after subtracting 1050 from 1145.
Take the next digit (9) from the dividend and append it to 95, then repeat: 959 / 150

Moving on to step 8:
150 can be fit into 959 6 times, resulting in a remainder of 59.
Write down 6 as next digit of the result. 
Result so far: 411476.0
The remainder is 59 after subtracting 900 from 959.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Let's proceed to step 9:
The number 150 fits into 590 3 times, leaving a remainder of 140.
The number 3 becomes the next digit in our result. 
Result so far: 411476.3
The remainder is 140 after subtracting 450 from 590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

On to step 10:
150 can be fit into 1400 9 times, resulting in a remainder of 50.
Write down 9 as next digit of the result. 
Result so far: 411476.39
Subtracting 1350 from 1400 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 11:
If we divide 500 by 150, we get 3 and a remainder of 50.
Record the quotient 3 as the next digit in the result. 
Result so far: 411476.393
If we take 450 away from 500, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 12:
150 can be fit into 500 3 times, resulting in a remainder of 50.
Put 3 as the next digit of the answer. 
Result so far: 411476.3933
Subtracting 450 from 500 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

The final outcome is 411476.3933, with a leftover of 0.0005.