61571537 ÷ 398 
We're looking to find how many times 398 goes into 61571537.

Going ahead to step 1:
398 can be fit into 6 0 times, resulting in a remainder of 6.
The number 0 becomes the next digit in our 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 / 398

Moving on to step 2:
61 divided by 398 is 0 with a remainder of 61.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 61 and we're left with 61.
Append the next digit (5) from the dividend to 61 and continue with: 615 / 398

On to step 3:
615 divided by 398 is 1 with a remainder of 217.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 398 from 615 to get 217.
Include the next digit (7) from the dividend after 217, then repeat: 2177 / 398

Step 4:
When dividing 2177 by 398, we get 5 with a remainder of 187.
Record the quotient 5 as the next digit in the result. 
Result so far: 15.0
Subtract 1990 from 2177 to get 187.
Bring next digit (1) of the dividend behind the 187 and repeat the process: 1871 / 398

Step 5:
If we divide 1871 by 398, we get 4 and a remainder of 279.
Put 4 as the next digit of the answer. 
Result so far: 154.0
If we take 1592 away from 1871, we end up with 279.
Take the next digit (5) from the dividend and append it to 279, then repeat: 2795 / 398

Going ahead to step 6:
When dividing 2795 by 398, we get 7 with a remainder of 9.
Write down 7 as next digit of the result. 
Result so far: 1547.0
Deduct 2786 from 2795 and we're left with 9.
Append the next digit (3) from the dividend to 9 and continue with: 93 / 398

Moving on to step 7:
398 can be fit into 93 0 times, resulting in a remainder of 93.
The next digit of our result is 0. 
Result so far: 15470.0
Subtracting 0 from 93 leaves us with 93.
Append the next digit (7) from the dividend to 93 and continue with: 937 / 398

Let's proceed to step 8:
If we divide 937 by 398, we get 2 and a remainder of 141.
The number 2 becomes the next digit in our result. 
Result so far: 154702.0
Deduct 796 from 937 and we're left with 141.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1410, and continue the process.

On to step 9:
If we divide 1410 by 398, we get 3 and a remainder of 216.
The next digit of our result is 3. 
Result so far: 154702.3
The remainder is 216 after subtracting 1194 from 1410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

Going ahead to step 10:
398 can be fit into 2160 5 times, resulting in a remainder of 170.
Record the quotient 5 as the next digit in the result. 
Result so far: 154702.35
Subtract 1990 from 2160 to get 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Moving on to step 11:
1700 divided by 398 is 4 with a remainder of 108.
Put 4 as the next digit of the answer. 
Result so far: 154702.354
If we subtract 1592 from 1700, we get 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

Going ahead to step 12:
398 can be fit into 1080 2 times, resulting in a remainder of 284.
Write down 2 as next digit of the result. 
Result so far: 154702.3542
If we take 796 away from 1080, we end up with 284.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2840, and continue the process.

On to step 13:
398 goes into 2840 7 times with a remainder of 54.
Write down 7 as next digit of the result. 
Result so far: 154702.35427
If we take 2786 away from 2840, we end up with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

On to step 14:
If we divide 540 by 398, we get 1 and a remainder of 142.
Put 1 as the next digit of the answer. 
Result so far: 154702.354271
Subtract 398 from 540 to get 142.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1420, and continue the process.

Going ahead to step 15:
398 can be fit into 1420 3 times, resulting in a remainder of 226.
Use 3 as the next digit of our solution. 
Result so far: 154702.3542713
Subtract 1194 from 1420 to get 226.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2260, and continue the process.

Advancing to step 16:
398 goes into 2260 5 times with a remainder of 270.
The number 5 becomes the next digit in our result. 
Result so far: 154702.35427135
If we subtract 1990 from 2260, we get 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

The final outcome is 154702.35427135, with a leftover of 2.7e-07.